This hallmark text maintains its basic approach that has made this book the standard in thermodynamics and at the same time has been further enriched with pedagogical features.
I read this book in second semester (and over and over afterwards) during undergrad in Mechanical Engineering at IIT Delhi.
It is quite true that the book covers 'engineering' thermodynamics. Yet, it is a really great book during and beyond engineering undergrad level. Being aimed at engineers and not scientists, the book is so simple that almost everything is calculation driven and I don't really need to refer to it anymore as a PhD student doing basic research. What I find more useful now is Thermodynamics and an Introduction to Thermostatistics by Callen (> 4k citations) and Computer Simulation of Liquids by M.P. Allen (>38k citations). Studying these books actually develops thermodynamical thinking, allowing you to do basic research.
But within the realms of undergrad in engineering, this is a definitive book (in my opinion).
This is a best book for engineering students who want to be good at thermal field and also for beginners. the author (pk nag) has written and explained each and every topic well. this a standard book for all mechanical field students.