diff --git a/_guide/semantic-html.md b/_guide/semantic-html.md
index 7b81b278..de438c24 100644
--- a/_guide/semantic-html.md
+++ b/_guide/semantic-html.md
@@ -1,8 +1,8 @@
 ---
 layout: guide
 title: Semantic HTML and accessibility
-description: Basic information on semantic HTML and accessibility.
-excerpt: Basic information on semantic HTML and accessibility.
+description: The importance of using semantic HTML tags and the accessibility benefits these can provide.
+excerpt: The importance of using semantic HTML tags and the accessibility benefits these can provide.
 sidenav: docs
 categories:
 - Accessibility 
diff --git a/_playbook/AT.md b/_playbook/AT.md
index c366fe9b..a93d2ec5 100644
--- a/_playbook/AT.md
+++ b/_playbook/AT.md
@@ -1,8 +1,8 @@
 ---
 layout: playbook
 title: Screen reader testing
-description: 
-excerpt: 
+description: A guide to common, popular screen readers such as JAWS and NVDA and a basic screen reader test plan.
+excerpt: A guide to common, popular screen readers such as JAWS and NVDA and a basic screen reader test plan.
 sidenav: docs
 categories:
   - Accessibility
diff --git a/_playbook/manual-testing.md b/_playbook/manual-testing.md
index c887cdac..6c12f8f9 100644
--- a/_playbook/manual-testing.md
+++ b/_playbook/manual-testing.md
@@ -1,8 +1,8 @@
 ---
 layout: playbook
 title: How to do manual testing
-description: 
-excerpt: 
+description: A comprehensive guide to basic manual testing, including how to do keyboard testing, zoom testing and color contrast testing.
+excerpt: A comprehensive guide to basic manual testing, including how to do keyboard testing, zoom testing and color contrast testing.
 sidenav: docs
 categories:
   - Testing