Even as you read these words, a tiny portion of your brain is physically changing. New connections are being sprouted-a circuit that will create a jab of recognition if you encounter the words again. That is one of the theories of memory presented in this intriguing and splendidly readable book, which distills three researchers' inquiries into the processes that enable us to recognize a face that has aged ten years or remember a melody for decades. | In the Palaces of Memory by George Johnson, Paperback | Indigo Chapters