diff --git a/science/ai/hosted/openai/chatgpt/docs/books.txt b/science/ai/hosted/openai/chatgpt/docs/books.txt
index 76144e454..888d69c15 100644
--- a/science/ai/hosted/openai/chatgpt/docs/books.txt
+++ b/science/ai/hosted/openai/chatgpt/docs/books.txt
@@ -1,3 +1,6 @@
+????
+CaelinBlete - Developing Apps with GPT-4 and ChatGPT 2nd ed
+    magnet:?xt=urn:btih:E8C4273FEBE8A21C39B9FC111C6DF99F6E7E39BB
 2024
 ElAmri - OpenAI GPT for Python Developers GPT-4 ru of p276
     AB9FB325BB83DF4A0E9360CFB94F423C