That book is really great if it’s your job to write timing constraints. If you’re interested in timing theory I think this is a bit better.
https://books.google.com/books/about/Timing.html?id=80gOBwAA...
https://books.google.com/books/about/Timing.html?id=80gOBwAA...
https://link.springer.com/book/10.1007/978-0-387-93820-2
It doesn't really focus on theory but more the principles of timing analysis and how to wrangle chip design tools into complying with your desired compromises in order to achieve your goals.