1. The metaphors are appropriate and perfect for beginners - It is explained using metaphors, but there are no difficult parts to understand because they appear repeatedly. It is clean. - It was easy to see by excluding formulas as much as possible. It is excellent as a basic book. 2. Video lectures - I think the best advantage of this book is that the author himself lectures and you can listen to them for free. Every word is a pearl. 3. Structure that allows you to follow along step by step with hand coding - It is not a structure where you write long codes at once by inserting codes in between, but rather it is structured so that you can follow along sequentially, making it easy to look at and follow. 4. Just an introductory book - It is the best as an introduction to machine learning and deep learning. I think it is interesting enough. Now you should seriously study deep learning and machine learning. This is a book with a clear author purpose.