High Performance Python: Practical Performant Programming for Humans, Second Edition (Greyscale Indian Edition)

There was a time when this publisher's books were considered the most authoritative ones. And now for the past 5-6 years I am watching that worst and most superficial books are being released from this publisher. The have become sort of guaranteed of worst books on the topic where they write a lot from here there, try to cover lots of topic with almost zero depth. And end up suggesting you to buy a few more OReilly books, from where also you hardly get anything.This book was supposed to be on High performance computing with python, but they have written a chapter of Multiprocessing module, and without explaining it, they job explaining joblib module! You will see the chapter of Multiprocessing long enough, but it hardly gives any proper introduction and detailing. They don't even explain their codes point by point.Also the writing style looks incoherent. Some chapters look a bit better written while you feel that some chapters are written by some kid. No depth at all. They did not even cover properly or say anything on important topics like Futures.Entire book looks trying to impress you with bringing names of modules only with hardly any meaningful detailing. I am almost on the brink of stopping buying SPD and Oreilly books. They r just behind money and publishing junks, that too overpriced.