If you want to invest like Warren Buffett, Jeremy Miller’s new book “Warren Buffett’s Ground Rules” may be a good place to start. The book made its debut at the Berkshire Hathaway annual meeting this year and was flying off the shelves.

There are thousands of books that have been written about Buffett and how to copy the billionaire’s successful investing techniques. This one details key principles of Buffett’s investment strategies gleaned from letters written by Buffett to his partners from 1956 to 1970.

Miller, a veteran financial advisor, discovered the 33 letters and realized the timeless tidbits they offered. Miller tells Fortune’s Susie Gharib that there are many investment lessons that investors can learn from Buffett’s “ground rules”. Buffett agrees. He endorsed the book.