diff --git a/books/free-programming-books-langs.md b/books/free-programming-books-langs.md
index 28f7cfb9..dec40d3b 100644
--- a/books/free-programming-books-langs.md
+++ b/books/free-programming-books-langs.md
@@ -884,9 +884,10 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [HTML Canvas Deep Dive](http://joshondesign.com/p/books/canvasdeepdive/toc.html) - Josh Marinacci
 * [HTML Dog Tutorials](http://www.htmldog.com)
 * [HTML5 Canvas](https://www.oreilly.com/library/view/html5-canvas/9781449308032/ch01.html) - Steve Fulton & Jeff Fulton
+* [HTML5 Canvas Notes for Professionals](https://goalkicker.com/HTML5CanvasBook/) - Compiled from StackOverflow documentation (PDF)
 * [HTML5 for Publishers](https://www.oreilly.com/library/view/html5-for-publishers/9781449320065/pr02.html) - Sanders Kleinfeld
 * [HTML5 For Web Designers](http://html5forwebdesigners.com) - Jeremy Keith
-* [HTML5 Notes for Professionals](http://goalkicker.com/HTML5Book/) - Compiled from StackOverflow documentation (PDF)
+* [HTML5 Notes for Professionals](https://goalkicker.com/HTML5Book/) - Compiled from StackOverflow documentation (PDF)
 * [HTML5 Quick Learning Guide](https://www.ossblog.org/wp-content/uploads/2017/06/html5-quick-learning-quide.pdf) - HTML5Templates (PDF)
 * [HTML5 Shoot 'em Up in an Afternoon](https://leanpub.com/html5shootemupinanafternoon/read) - Bryan Bibat (HTML)
 * [Interneting is Hard (But it Doesn't Have to Be)](https://www.internetingishard.com) - Oliver James