The first thought that crossed my mind after having read this book was to go to the nearest bookshop and buy "An Anthropologist on Mars". These two particular works written by the same author, namely Oliver Sacks were recommended to me by my friend, who at the time had bought the whole collection of works by Sacks. It took me over a year to pick it up and the only thing I regret is that I hadn't read it earlier. I was, and still am, amazed what a complex machinery the human brain is. The disorders described by Sacks are unique and unusual, which makes the reading ever more fascinating. The only shortcoming seems to be the length of the book, because, I mean, this is one of the most really interesting and fascinating pieces of writing I have ever come across. I very highly recommend it and I am not joking when I tell you - this book can really change your attitude and way of thinking.