The book is called Enriching the Brain. I am currently reading it. It is an excellent resource. He discusses different theories of intelligence which is interesting. He also talks about an enriching environment. I am curious if anyone has put the different things into practice. I am thinking about discussing it a little on my blog but I haven't started yet.
I haven't read the new book, but I did just finish Teaching with the Brain in Mind. I thought it was great! Not only did he give the background information and research on the topic, but he also gave practical ideas for implementing the theory in the classroom. I have a ton of new ideas to use this year.