It's a solid intro to the sport, with some extra detail and spots in too little in others. I got it largely for the photos (which are, for the most part, pretty impressive, esp. the underwaters shots), but I picked up some ideas here and there, too.
The odd thing about reading this book is that it feels a little like a time-warp, or at least a remove from what I normally read. There's no concern with catch-and-release here, which isn't too surprising given that it's a book on panfishing. Some of the techniques are just things I haven't seen discussed in a while, like peeling live crayfish, using chunks of perch to catch perch, etc.
All in all worth the read, and more worth the pics, but not groundbreaking or anything.