diff --git a/.gitignore b/.gitignore
index 9b41f8b..52dea8e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 # Created by .gitignore support plugin (hsz.mobi)
 *.~
-*.tmp
\ No newline at end of file
+*.tmp
+.idea/
+_book/