""I found this book answered a lot of questions for me on how AI and LLM apps work. By building simple practical apps like chatting with a document using the Langchain framework and getting assistance on writing articles, one learns the features of the framework quickly! This book is written in a simple step-by-step fashion to enable you to learn quickly and stick to the point. The practical examples are great for learning"" Arnold Graaff ""This book gave me a quick intro into lanchain use with LLMs. In just a few hours, everything is set up and running, and you get a good feel for the libraries and potentials of LLM with LangChain."" Morten Wagner