The 32-year-old millionaire founder of $3.75 billion Box thinks everyone needs to read these two books

"The Great Game of Business" first came to Levie's attention because it was referenced by McCord in her book Powerful. It may have come out in 1992, but it continues to be influential today.

In the book, author and long-time entrepreneur Jack Stack touts the idea of "open-book management," a style of office culture which loops everyone into the finances of the company so they know how things are going every step of the way. Stack's model of transparency and engagement was inspired by workers on the factory floor at International Harvester, which was going "down the tubes," according to the book summary.

But it's found its way into the heart of Silicon Valley leaders as well. Stack, founder and CEO of SRC Holdings Corporation, even managed to create a whole franchise around the book, which includes coaches, classes and events built to teach the model.