If you are studying this for a course or job interview, focus heavily on these "Hot Topics" found in the book:
A practical, approachable introductory text that teaches transistor-level CMOS design and layout fundamentals, ideal for learners who need a hands-on foundation though not exhaustive coverage of modern process technologies. Basic Vlsi Design By Douglas Pucknell.pdf
The physics of how the transistor acts as a switch. If you are studying this for a course
The book covers a range of topics essential for understanding VLSI design. Some of the key topics include: Basic Vlsi Design By Douglas Pucknell.pdf