diff --git a/koha-tmpl/intranet-tmpl/prog/en/includes/html_helpers/tables/items/catalogue_detail.inc b/koha-tmpl/intranet-tmpl/prog/en/includes/html_helpers/tables/items/catalogue_detail.inc
index 67440510e6..7ea4270e71 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/includes/html_helpers/tables/items/catalogue_detail.inc
+++ b/koha-tmpl/intranet-tmpl/prog/en/includes/html_helpers/tables/items/catalogue_detail.inc
@@ -396,7 +396,7 @@
                         [% UNLESS noItemTypeImages %]
                             let image_location = item_type_image_locations[row.item_type_id];
                             node += image_location
-                                ? '<img class="itemtype-image" src="%s" alt="%s" title="%s" /> '.format(escape_str(image_location), escape_str(item_type_description), escape_str(item_type_description))
+                                ? '<img class="itemtype-image" src="%s" alt="" title="%s" /> '.format(escape_str(image_location), escape_str(item_type_description), escape_str(item_type_description))
                                 : '';
                         [% END %]
                         node += '<span class="itypedesc itypetext">%s</span>'.format(escape_str(item_type_description));
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/advsearch.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/advsearch.tt
index 5e71518f4b..a5cbfb4ba1 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/advsearch.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/advsearch.tt
@@ -208,7 +208,7 @@
                                                 <label for="[% itemtypeloo.ccl FILTER remove(',') | html %]-[% itemtypeloo.number | html %]">
                                                     [% UNLESS ( Koha.Preference('noItemTypeImages') ) %]
                                                         [% IF ( itemtypeloo.imageurl ) %]
-                                                            <img class="itemtype-image" src="[% itemtypeloo.imageurl | html %]" alt="[% itemtypeloo.description | html %]" />
+                                                            <img class="itemtype-image" src="[% itemtypeloo.imageurl | html %]" alt="" />
                                                         [% END %]
                                                             &nbsp;
                                                     [% END %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/results.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/results.tt
index ade947fd89..8a703f516b 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/results.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/results.tt
@@ -657,7 +657,7 @@
                                         [% IF ( !item_level_itypes ) || Koha.Preference('BiblioItemtypeInfo') %]
                                             <div class="result-biblio-itemtype">
                                                 [% IF !noItemTypeImages && SEARCH_RESULT.imageurl %]
-                                                    <img class="itemtype-image" src="[% SEARCH_RESULT.imageurl | html %]" alt="[% SEARCH_RESULT.description | html %]" />
+                                                    <img class="itemtype-image" src="[% SEARCH_RESULT.imageurl | html %]" alt="" />
                                                 [% END %]
                                                 <span class="itypetext">[% SEARCH_RESULT.description | html %]</span>
                                             </div>
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/virtualshelves/shelves.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/virtualshelves/shelves.tt
index 1f219a997c..8853414337 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/virtualshelves/shelves.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/virtualshelves/shelves.tt
@@ -351,7 +351,7 @@
                                 [% UNLESS ( item_level_itypes ) %]
                                     <td>
                                         [% UNLESS ( noItemTypeImages || !itemsloo.imageurl ) %]
-                                            <img class="itemtype-image" src="[% itemsloo.imageurl | html %]" alt="[% itemsloo.description | html %]" title="[% itemsloo.description | html %]" />
+                                            <img class="itemtype-image" src="[% itemsloo.imageurl | html %]" alt="" title="[% itemsloo.description | html %]" />
                                         [% END %]
                                         <span class="itypetext">[% itemsloo.description | html %]</span>
                                     </td>
diff --git a/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetResults.xsl b/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetResults.xsl
index 58faae0eac..0e7b2cccb9 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetResults.xsl
+++ b/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetResults.xsl
@@ -512,20 +512,20 @@
                     <xsl:choose>
                         <xsl:when test="$leader7='c' or $leader7='d' or $leader7='m'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/book.png" alt="book" title="book" class="materialtype mt_icon_BK"/> Text</xsl:when>
                         <xsl:when test="$leader7='i' or $leader7='s'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/newspaper.png" alt="serial" title="serial" class="materialtype mt_icon_CR"/> Continuing resource</xsl:when>
-                        <xsl:when test="$leader7='a' or $leader7='b'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/book_open.png" alt="article" title="article" class="materialtype mt_icon_AR"/> Article</xsl:when>
+                        <xsl:when test="$leader7='a' or $leader7='b'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/book_open.png" alt="" title="article" class="materialtype mt_icon_AR"/> Article</xsl:when>
                     </xsl:choose>
                 </xsl:when>
                 <xsl:when test="$leader6='t'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/book.png" alt="book" title="book" class="materialtype mt_icon_BK"/> Text</xsl:when>
-                <xsl:when test="$leader6='o'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/report_disk.png" alt="kit" title="kit" class="materialtype mt_icon_MX"/> Kit</xsl:when>
-                <xsl:when test="$leader6='p'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/report_disk.png" alt="mixed materials" title="mixed materials" class="materialtype mt_icon_MX"/>Mixed materials</xsl:when>
-                <xsl:when test="$leader6='m'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/computer_link.png" alt="computer file" title="computer file" class="materialtype mt_icon_CF"/> Computer file</xsl:when>
-                <xsl:when test="$leader6='e' or $leader6='f'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/map.png" alt="map" title="map" class="materialtype mt_icon_MP"/> Map</xsl:when>
-                <xsl:when test="$leader6='g'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/film.png" alt="Film" class="materialtype mt_icon_VM"/> Film</xsl:when>
-                <xsl:when test="$leader6='k'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/picture.png" alt="Picture" class="materialtype mt_icon_GR"/> Picture</xsl:when>
-                <xsl:when test="$leader6='r'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/object.png" alt="Object" title="Object" class="materialtype mt_icon_OB"/> Object</xsl:when>
-                <xsl:when test="$leader6='c' or $leader6='d'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/music.png" alt="score" title="score" class="materialtype mt_icon_PR"/> Score</xsl:when>
-                <xsl:when test="$leader6='i'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/sound.png" alt="sound" title="sound" class="materialtype mt_icon_MU"/> Sound</xsl:when>
-                <xsl:when test="$leader6='j'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/sound.png" alt="music" title="music" class="materialtype mt_icon_MU"/> Music</xsl:when>
+                <xsl:when test="$leader6='o'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/report_disk.png" alt="" title="kit" class="materialtype mt_icon_MX"/> Kit</xsl:when>
+                <xsl:when test="$leader6='p'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/report_disk.png" alt="" title="mixed materials" class="materialtype mt_icon_MX"/>Mixed materials</xsl:when>
+                <xsl:when test="$leader6='m'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/computer_link.png" alt="" title="computer file" class="materialtype mt_icon_CF"/> Computer file</xsl:when>
+                <xsl:when test="$leader6='e' or $leader6='f'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/map.png" alt="" title="map" class="materialtype mt_icon_MP"/> Map</xsl:when>
+                <xsl:when test="$leader6='g'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/film.png" alt="" class="materialtype mt_icon_VM"/> Film</xsl:when>
+                <xsl:when test="$leader6='k'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/picture.png" alt="" class="materialtype mt_icon_GR"/> Picture</xsl:when>
+                <xsl:when test="$leader6='r'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/object.png" alt="" title="Object" class="materialtype mt_icon_OB"/> Object</xsl:when>
+                <xsl:when test="$leader6='c' or $leader6='d'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/music.png" alt="" title="score" class="materialtype mt_icon_PR"/> Score</xsl:when>
+                <xsl:when test="$leader6='i'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/sound.png" alt="" title="sound" class="materialtype mt_icon_MU"/> Sound</xsl:when>
+                <xsl:when test="$leader6='j'"><img src="/intranet-tmpl/prog/img/famfamfam/silk/sound.png" alt="" title="music" class="materialtype mt_icon_MU"/> Music</xsl:when>
             </xsl:choose>
         </span>
     </xsl:if>
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-advsearch.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-advsearch.tt
index b09466ece4..76f779508f 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-advsearch.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-advsearch.tt
@@ -223,7 +223,7 @@
                                                                 [% UNLESS ( Koha.Preference('OpacNoItemTypeImages')) %]
                                                                     [% IF ( itemtypeloo.imageurl ) %]
                                                                         <label for="[% itemtypeloo.ccl FILTER remove(',') | html %]-[% itemtypeloo.number | html %]">
-                                                                            <img class="itemtype-image" src="[% itemtypeloo.imageurl | html %]" alt="[% itemtypeloo.description | html %]" />
+                                                                            <img class="itemtype-image" src="[% itemtypeloo.imageurl | html %]" alt="" aria-hidden="true" />
                                                                         </label>
                                                                     [% END %]
                                                                     &nbsp;
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-detail.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-detail.tt
index c761be0ac5..cb0a32630e 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-detail.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-detail.tt
@@ -1357,7 +1357,7 @@
                         <td class="itype">
                             [% UNLESS ( Koha.Preference('OpacNoItemTypeImages') ) %]
                                 [% IF ( ITEM_RESULT.imageurl ) %]
-                                    <img class="itemtype-image" src="[% ITEM_RESULT.imageurl | html %]" title="[% ITEM_RESULT.description | html %]" alt="[% ITEM_RESULT.description | html %]" />
+                                    <img class="itemtype-image" src="[% ITEM_RESULT.imageurl | html %]" title="[% ITEM_RESULT.description | html %]" alt="" />
                                 [% END %]
                             [% END %]
                             <span class="itypetext">[% ITEM_RESULT.description | html %]</span>
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-shelves.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-shelves.tt
index 92f35127f9..e7534fcc87 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-shelves.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-shelves.tt
@@ -401,7 +401,7 @@
                                                     [% UNLESS ( item_level_itypes ) %]
                                                         <td>
                                                             [% UNLESS ( Koha.Preference('OpacNoItemTypeImages') ) %]
-                                                                <img class="itemtype-image" src="[% itemsloo.imageurl | html %]" alt="[% itemsloo.description | html %]" title="[% itemsloo.description | html %]" />
+                                                                <img class="itemtype-image" src="[% itemsloo.imageurl | html %]" alt="" title="[% itemsloo.description | html %]" />
                                                             [% END %]
                                                             <span class="itypetext">[% itemsloo.description | html %]</span>
                                                         </td>
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl
index 431ead5ec1..ea7c985ecc 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl
@@ -197,7 +197,7 @@
         <span class="results_summary type"><span class="label">Material type: </span>
         <xsl:element name="img">
             <xsl:attribute name="src">/opac-tmpl/lib/famfamfam/<xsl:value-of select="$materialTypeCode"/>.png</xsl:attribute>
-            <xsl:attribute name="alt"><xsl:value-of select="$materialTypeLabel"/></xsl:attribute>
+            <xsl:attribute name="alt"></xsl:attribute>
             <xsl:attribute name="class">materialtype mt_icon_<xsl:value-of select="$materialTypeCode"/></xsl:attribute>
         </xsl:element>
         <xsl:value-of select="$materialTypeLabel"/>
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACResults.xsl b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACResults.xsl
index f2099aea75..96acfdced1 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACResults.xsl
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACResults.xsl
@@ -697,25 +697,25 @@
     <span class="results_material_type">
         <span class="label">Material type: </span>
             <xsl:choose>
-                <xsl:when test="$leader19='a'"><img src="/opac-tmpl/lib/famfamfam/ST.png" alt="Set" class="materialtype mt_icon_ST"/> Set</xsl:when>
+                <xsl:when test="$leader19='a'"><img src="/opac-tmpl/lib/famfamfam/ST.png" alt="" class="materialtype mt_icon_ST"/> Set</xsl:when>
                 <xsl:when test="$leader6='a'">
                     <xsl:choose>
-                        <xsl:when test="$leader7='c' or $leader7='d' or $leader7='m'"><img src="/opac-tmpl/lib/famfamfam/BK.png" alt="Text" class="materialtype mt_icon_BK"/> Text</xsl:when>
-                        <xsl:when test="$leader7='i' or $leader7='s'"><img src="/opac-tmpl/lib/famfamfam/SE.png" alt="Continuing resource" class="materialtype mt_icon_SE"/> Continuing resource</xsl:when>
-                        <xsl:when test="$leader7='a' or $leader7='b'"><img src="/opac-tmpl/lib/famfamfam/AR.png" alt="Article" class="materialtype mt_icon_AR"/> Article</xsl:when>
+                        <xsl:when test="$leader7='c' or $leader7='d' or $leader7='m'"><img src="/opac-tmpl/lib/famfamfam/BK.png" alt="" class="materialtype mt_icon_BK"/> Text</xsl:when>
+                        <xsl:when test="$leader7='i' or $leader7='s'"><img src="/opac-tmpl/lib/famfamfam/SE.png" alt="" class="materialtype mt_icon_SE"/> Continuing resource</xsl:when>
+                        <xsl:when test="$leader7='a' or $leader7='b'"><img src="/opac-tmpl/lib/famfamfam/AR.png" alt="" class="materialtype mt_icon_AR"/> Article</xsl:when>
                     </xsl:choose>
                 </xsl:when>
-                <xsl:when test="$leader6='t'"><img src="/opac-tmpl/lib/famfamfam/BK.png" alt="Text" class="materialtype mt_icon_BK"/> Text</xsl:when>
-                <xsl:when test="$leader6='o'"><img src="/opac-tmpl/lib/famfamfam/MM.png" alt="Kit" class="materialtype mt_icon_MM"/> Kit</xsl:when>
-                <xsl:when test="$leader6='p'"><img src="/opac-tmpl/lib/famfamfam/MM.png" alt="Mixed materials" class="materialtype mt_icon_MM"/>Mixed materials</xsl:when>
-                <xsl:when test="$leader6='m'"><img src="/opac-tmpl/lib/famfamfam/CF.png" alt="Computer file" class="materialtype mt_icon_CF"/> Computer file</xsl:when>
-                <xsl:when test="$leader6='e' or $leader6='f'"><img src="/opac-tmpl/lib/famfamfam/MP.png" alt="Map" class="materialtype mt_icon_MP"/> Map</xsl:when>
-                <xsl:when test="$leader6='g'"><img src="/opac-tmpl/lib/famfamfam/VM.png" alt="Film" class="materialtype mt_icon_VM"/> Film</xsl:when>
-                <xsl:when test="$leader6='k'"><img src="/opac-tmpl/lib/famfamfam/GR.png" alt="Picture" class="materialtype mt_icon_GR"/> Picture</xsl:when>
-                <xsl:when test="$leader6='r'"><img src="/opac-tmpl/lib/famfamfam/OB.png" alt="Object" class="materialtype mt_icon_OB"/> Object</xsl:when>
-                <xsl:when test="$leader6='c' or $leader6='d'"><img src="/opac-tmpl/lib/famfamfam/PR.png" alt="Score" class="materialtype mt_icon_PR"/> Score</xsl:when>
-                <xsl:when test="$leader6='i'"><img src="/opac-tmpl/lib/famfamfam/MU.png" alt="Sound" class="materialtype mt_icon_MU"/> Sound</xsl:when>
-                <xsl:when test="$leader6='j'"><img src="/opac-tmpl/lib/famfamfam/PR.png" alt="Music" class="materialtype mt_icon_PR"/> Music</xsl:when>
+                <xsl:when test="$leader6='t'"><img src="/opac-tmpl/lib/famfamfam/BK.png" alt="" class="materialtype mt_icon_BK"/> Text</xsl:when>
+                <xsl:when test="$leader6='o'"><img src="/opac-tmpl/lib/famfamfam/MM.png" alt="" class="materialtype mt_icon_MM"/> Kit</xsl:when>
+                <xsl:when test="$leader6='p'"><img src="/opac-tmpl/lib/famfamfam/MM.png" alt="" class="materialtype mt_icon_MM"/>Mixed materials</xsl:when>
+                <xsl:when test="$leader6='m'"><img src="/opac-tmpl/lib/famfamfam/CF.png" alt="" class="materialtype mt_icon_CF"/> Computer file</xsl:when>
+                <xsl:when test="$leader6='e' or $leader6='f'"><img src="/opac-tmpl/lib/famfamfam/MP.png" alt="" class="materialtype mt_icon_MP"/> Map</xsl:when>
+                <xsl:when test="$leader6='g'"><img src="/opac-tmpl/lib/famfamfam/VM.png" alt="" class="materialtype mt_icon_VM"/> Film</xsl:when>
+                <xsl:when test="$leader6='k'"><img src="/opac-tmpl/lib/famfamfam/GR.png" alt="" class="materialtype mt_icon_GR"/> Picture</xsl:when>
+                <xsl:when test="$leader6='r'"><img src="/opac-tmpl/lib/famfamfam/OB.png" alt="" class="materialtype mt_icon_OB"/> Object</xsl:when>
+                <xsl:when test="$leader6='c' or $leader6='d'"><img src="/opac-tmpl/lib/famfamfam/PR.png" alt="" class="materialtype mt_icon_PR"/> Score</xsl:when>
+                <xsl:when test="$leader6='i'"><img src="/opac-tmpl/lib/famfamfam/MU.png" alt="" class="materialtype mt_icon_MU"/> Sound</xsl:when>
+                <xsl:when test="$leader6='j'"><img src="/opac-tmpl/lib/famfamfam/PR.png" alt="" class="materialtype mt_icon_PR"/> Music</xsl:when>
             </xsl:choose>
     </span>
     </xsl:if>
@@ -764,7 +764,7 @@
                 </xsl:when>
                 <xsl:when test="contains($controlField008-24,'b')">
 			bibliography
-                     <img src="/opac-tmpl/lib/famfamfam/text_list_bullets.png" alt="bibliography" class="natureofcontents"/>
+                     <img src="/opac-tmpl/lib/famfamfam/text_list_bullets.png" alt="" class="natureofcontents"/>
                 </xsl:when>
                 <xsl:when test="contains($controlField008-24,'c')">
                     catalog