diff --git a/TLDR.md b/TLDR.md
index 6f870ef..f662314 100644
--- a/TLDR.md
+++ b/TLDR.md
@@ -79,6 +79,8 @@
   - https://seths.blog/2014/01/the-fatal-arrogance-of-tldr/
 - Semicolon is Ironic in TL;DR
   - https://www.quickanddirtytips.com/education/grammar/is-the-semicolon-in-tldr-ironic
+- TLDR: Why we should all add a summary to the emails we write
+  - https://patiencedavies.com/2021/06/02/tldr-why-we-should-all-add-a-summary-to-the-emails-we-write/
 
 ### Books
 - TLDR - Investments and Finance for Young People