Add another one to the list.

The tally of successful entrepreneurs who credit much of their success to regular reading was already long and illustrious, including Bill Gates, Warren Buffett, Marc Andreessen, and many others, but now it's one name longer.

On LinkedIn recently, Ryan Holmes, the CEO and founder of social-media platform Hootsuite, explained that while he sometimes enjoys unwinding with a cute cat video like the rest of us, he also believes it's essential to make time to "dive into some of the great 'long reads' -- the kind of well-researched stuff that actually changes how you look at the world."

Holmes goes on to list the books that are most responsible for his personal outlook, and which helped him take his company from idea to billion-dollar business. Some, like Ben Horowitz's The Hard Thing About Hard Things, Tony Hsieh's Delivering Happiness, and Ed Catmull's Creativity Inc., are canonical in the startup world, and no doubt you've heard them recommended before. But others are completely unexpected and thoroughly intriguing. Like these:

1. An Astronaut's Guide to Life on Earth by Chris Hadfield

In this book, Chris Hadfield "shares extraordinary stories from his life as an astronaut. He also shows us how to make the impossible a reality," explains Holmes. "I highly recommend this to anyone who dreams big and who strives to stay true to themselves."

2. Abundance: The Future Is Better Than You Think by Peter H. Diamandis and Steven Kotler

"This is a great book that looks at the important and evolving role of technology in our society now, and in the future. It suggests the world as we know it today is the best it's ever been, but nobody realizes it. It's an eye-opening read and worth checking out," Holmes says of Abundance.

3. Where the Wild Things Are by Maurice Sendak

What's a tech CEO doing recommending a classic children's book to adults? "I can still relate to the main character, Max, and his rebellious spirit," says Holmes, who adds the book remains "a great reminder for adults to stay imaginative."

4. Born to Run by Christopher McDougall

Born to Run chronicles the adventures of author Christopher McDougall as he sets out to learn the secrets of a remote tribe thought to be the world's greatest long distance runners. "As thought-provoking as Born to Run is, it's also inspirational. It shows us that we are more than we have been taught to believe," writes Holmes of this pick.

5. The Long Walk by Slavomir Rawicz

Rawicz was a Polish soldier during World War II who was captured and held prisoner by the Soviets. This memoir tells the story of his long trek back to freedom. "The Long Walk is about everyday human struggle, overcoming obstacles, and achieving the impossible. That's why I keep 10 copies on my desk to give away at any moment," says Holmes.

Check out the complete post for his full list of picks.