'Apple: The First 50 Years' is the Ultimate Apple Encyclopedia

David Pogue released Apple: The First 50 Years, a 600-page hardcover book.

The book was published ahead of Apple's 50th anniversary on April 1.

The hardcover is regularly priced at $50 in the U.S. and is on sale for about $35 on Amazon.

Pogue interviewed 150 people for the book, including Steve Wozniak, John Sculley, and Jony Ive.

It covers Apple's first five decades—its founding, near collapse, revival under Steve Jobs, and growth under Tim Cook.