Fresh from the clogged tubes of teh intarwubs…
"2. Summation.<br />
Again, more common than it is necessary. After a long — I’m talking several thousand words — review of a book that identifies a goodly number of positives and negatives, you might want to recap. But even then you might just be repeating yourself (perhaps the most boring way to start a conclusion is: “Overall…”) or not examining your own views hard enough: how many books are you really that split-down-the-middle on?"
"1. Jeopardy – Think of your conclusion: the one thing you want anyone reading your review to know about the thing you’re discussing. Now think of the question to which your conclusion is the answer. (This works best if you have something more interesting to say than simply, “it’s good” or “it’s bad”.)"