No. It's been decades since I read the book but the concept is simple and quickly in understood and doesn't need a book-length treatment. He doesn't give any guidance on how to achieve the flow state which is what I was looking for.
The topic certainly deserves a book-length treatment (it's only some 300 pages). He explores the idea with great rigour. I've read it 7 years ago, and just went through some of my Kindle notes. There's ample guidance. But the reader must put in some work to extract the value. If you're in a hurry, you won't get much out of it (or any book).
I definitely recommend it. He studied the topic of "optimal experience" for 40 years, and explores it in various settings. The book has plenty of guidance on understanding how do people get into flow states. There might not be highly precise "instructions", but the book absolutely provides valuable insights. The patient reader will be rewarded.
(Also, the bibliography at the end of the book is quite valuable. Good writers share their sources generously.)