Based on typical academic syllabi where this book is a primary reference, the content generally includes:

Focuses on the practical design aspects of digital circuits rather than just theoretical proofs.

Another popular textbook by the same author, covering wider integrated electronics topics, including 555 timers and converters. Digital Fundamentals by Thomas L. Floyd:

To help you understand if this PDF is right for you, here is a quick comparison of Digital Fundamentals by V. Vijayendran against other standard texts.