An interesting book for anyone whose interested in the way the brain works. Or simply wanting to wonder about the mystery of the mind! I found the chapter on language to be particularly interesting. Tammet does not only explain us the results and meanings of various studies on the brain but gives also his own experiences and impressions on them. You get to know even more the way his mind work which in turn brings you great insight into your own mind. You will be surprised by the role numbers play in our brain, our perceptions of things and how memory works. It is only a light touch on the way the brain works, appealing enough to makes you hungry for more... and for more depth you will probably need to refer to the authors Tammet evokes in his book.