I'm no expert on Mark Twain, but regard him as an American treasure. The fact that I can get just about every one of his major and minor works for less than $3 is guilt inducing. I bought it to re-read Huck Finn and Tom Sawyer for the first time since my youth, and it was money well spent just to enjoy those two master works again. But there is so much more here than the heavy hitters to be studied and enjoyed.