"Mindfoolness" is a great book about the way a human brain works. You will understand how the things you see are stocked insinde specific areas, as well as the way you learn new things. People who wrote this book have gooten nobel prices because of their discoveries and decided to get together to transmit everything you shall know about your mind in an easy way. This book is completely free, however, is it full of priceless knowledge. Have fun and become a mindfooler.