diff --git a/doc/The_Singleton_Pattern.doc b/doc/The_Singleton_Pattern.doc new file mode 100644 index 0000000..8839aef Binary files /dev/null and b/doc/The_Singleton_Pattern.doc differ diff --git a/doc/Working_with_Threads.doc b/doc/Working_with_Threads.doc new file mode 100644 index 0000000..bcb9299 Binary files /dev/null and b/doc/Working_with_Threads.doc differ