This is one of the most well written and easy to follow textbooks I have read. Care is taken for stepwise development as the reader moves along. Stepwise developement permits reuse of ideas deveoped earlier, a kind of review, with incremental increase in complexity.<br>I started in the second half to find out about intersting topics in the literature and was able to use references to earlier developement in the book to clearify issues I had. I then found a comfortable starting point halfway through the first section to prepare a better foundation.<br>The reward of being able to determine how each theorem arises from earlier equations (concepts) makes the book hard to lay down (like a good novel.)<br>I'm sorry I can't comment about the problems because I was too buisy with the text to take the time to try any of them.<br>I obviously recommend the text.