Which is best book for learning CNC milling machine at Diploma level?

There are these two great books in market that cover each aspect of CNC. They are bit of high level but are very easy to understand: https://www.amazon.in/CNC-Machining-Handbook-Programming-Implementation/dp/0071623019?tag=googinhydr18418-21 https://www.amazon.in/CNC-Handbook-Hans-Kief/dp/007179948

The 5 Best Books on CNC. The information superhighway is a fantastic. In this thorough guide to proven CNC machine practices, you'll be producing machine parts faster, with minimal errors, and with much less manual work involved. With more than 100 color images. Including how to programme Camps and