diff --git a/book/chapter-01-run-and-talk.md b/book/chapter-01-run-and-talk.md
index d7a582c3..165d53bb 100644
--- a/book/chapter-01-run-and-talk.md
+++ b/book/chapter-01-run-and-talk.md
@@ -83,4 +83,7 @@ Means software brand.
 
 ## NLP
 
+Means natural language processing.
+Artificial intelligence creates a subfield for better interactions between humans and computers. GeneralBots understands data input, processing and output through natural language.
+
 ## Bot Factory