Here are some tips to keep in mind when downloading the PDF version of "Thermal Physics" by A.B. Gupta:

: Covers the Zeroth, First, and Second Laws, including detailed discussions on entropy, thermodynamic relations, and heat engines.

Overall, "Thermal Physics" by A.B. Gupta is a good textbook for undergraduate students of physics, engineering, and other related fields. The book provides a clear and comprehensive introduction to the principles of thermal physics, including thermodynamics, statistical mechanics, and kinetic theory of gases. While it may not cover modern topics or provide extensive discussion on applications, it is a good resource for students who want to understand the fundamental concepts of thermal physics.