diff --git a/book-1/all.tex b/book-1/all.tex
index 3911a14..73fa488 100755
--- a/book-1/all.tex
+++ b/book-1/all.tex
@@ -8,5 +8,3 @@
 \input{book-1/6}
 \input{book-1/7}
 \input{book-1/8}
-\input{book-1/9}
-\input{book-1/10}