diff --git a/.gitignore b/.gitignore
index 3ec46dd..8afec52 100644
--- a/.gitignore
+++ b/.gitignore
@@ -203,3 +203,7 @@ Cargo.lock
 **/*.rs.bk
 
 mdbook/book
+bundle
+crowbook/wtf-handbook.epub
+crowbook/wtf-handbook.html
+crowbook/wtf-handbook.pdf