diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 7d4e0d722e9e6ad7a61dc7c06b1075b0e8128ded..be5999abc30208f054e2d4aae93a076a3ce919dc 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -53,6 +53,10 @@ GOOD: * [IllumOS Dynamic Tracing Guide](http://dtrace.org/guide/preface.html) -
 
 ```
 
+#### What to do about multiple links to the same book ([#1192](https://github.com/vhf/free-programming-books/issues/1192#issuecomment-135969100))
++ if its a different edition, add separate link with a note about its edition
++ if its the same book but in a better format, replace link
++ if one is a webpage and the other is pdf, add separate link with a note about its format
 
 And that's it! Simple, easy and lovely...