The Origami Under the Sea book is an awesome book with many very well diagramed models of which all but 4 of the 26 models are the exact same model as in the previously released book, Origami Sea Life, which contains 38 models. The 4 new models are a very simple ray, a swordfish (which I like less than the sailfish model which was left out of this book), a very nice Siamese Fighting Fish, and a Gourami. There are 16 models from the original book Origami Sea Life which were left out of this book including one of my favorites, the Blue Shark. I was very dissappointed when I found that the book was basically a repackaged & reduced version of the original book. If you have Origami Sea Life I don't recommend this book, if you don't already have it and can't get Origami Sea Life, I highly recommend it. If this was an original book I would have given it 5 stars. John Montroll and Robert Lang are two of the best origami artists and are very good at creating amazing origami peices with clear diagrams that can be followed.