It is meant for digital CMOS circuit designers. Not meant for digital circuits level. All are at CMOS transistor level analysis and design. Usually, most of the digital CMOS circuits in the industry have already been laid out and kept as part of the standard cell library. Even though so, we still need to have a strong concept on digital CMOS circuits in order to be a good IC designer.
It is a very good book for the beginner and intermediate level, for those who has the interest to pick up CMOS digital circuits. The book is not meant to help the reader to be good at layouts, semiconductor physics and CAD tools. There are other books for those fields. The book presents a thorough explanation on digital CMOS circuit operation using both equations and words. A lot of diagrams and graphs/curves. That makes it very useful for self study. Helps the beginner (what i meant by "beginner" is that he/she should have a knowledge in fundamentals of semiconductor physics such as pn junction) to grasp the concept of digital CMOS circuit well.
I have 2 more books that are by Leblibici (CMOS Digital Integrated Circuits Analysis & Design) and Neil Weste (Princple of CMOS vlsi design) and I found that this is better than both the books for beginners and for CMOS purpose. But the book by Weste is a very good reference, not meant for self reading unless you have a good foundation in CMOS circuit design already. The book by Leblibici is almost as good as the one by Uyemura. So, I use Leblibici book for extra reference and would usually use the book by Uyemura for first read. Therefore, I found the book by Leblibici is just as important.