Encyclopedia of Impromptu Magic, The by Martin Gardner

Great Encyclopedia!
This is just what you get, an Encyclopedia alphabetically ordered by the object used. There are really a lot of effects and puzzles and jokes the greatest part very easy but only a little part of them is really good you should choose them yourself. Finally a very good book, knowing some impropmtu magic is a must for every performer. Another good thing is that there are a hundreds of principles and ideas you can use to create new effects.