This is a book that is well done. I haven't taken the test yet but I know it has helped prepare me In a way that nothing else could have. Not sure how it compares to other GRE study books, but I enjoy the practice tests. The online content cd it comes with is not helpful at all.

Cozmo is an amazing cute little robot that packs a lot of intelligence. We bought cozmo for my nephew but we ended up having a lot of fun. This birthday we got a lot of robots for him to play. We bought BB8 and also a dinasaur which fetches the bone, After playing with all three i can say Cozmo is the smartest robot in the market. The human emotions emoted through eyes, sounds and mechanical action started to seem pretty realistic. We had a lot of different age group ranging from 5 yrs to 72 yrs on the dinner table when we started playing with it. Suddenly after 5 to 10 mins everybody was saying "Aww", "Smart move cozmo", "Ouch", "Look he is angry" It was like we bought a real pet at home. It is smart, and winning game against him requires real concentration and the way cozmo sleeps to says the same is simply amazing.