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Wow, I am amazed by Alex. What he did really impressed me and made an impression. I cannot say the same for Pepperberg, who I found to be hard to relate to and a bit full of herself. I'm not partial to memoirs for that reason, and the tendency for the author to whine. I enjoyed when Alex was the focus of the story. In my opinion, it should have ended a chapter sooner, as the last one was tough to get through and I felt the ideas were jumbled.