I can't find them anywhere. No solution manual, no courses that used the textbook and then posted solutions, nothing. At the same time, the author leaves some important results in the exercises. I like the writing style and so far I'm not having inordinate trouble with the problems, but I'm now pretty unhappy with the person who recommended this book as "good for self-study". I am no stranger to the problem where one produces a wrong answer and doesn't know enough to realize that the answer is wrong.
I'm surprised that I cannot find any courses that use this highly-regarded textbook.