Jack Dorsey: "Incredible book by Stewart Brand. Best I’ve read this year."

Marc Andreessen: "[A book on] why even environmentalists should be pro building, pro cities, pro nuclear, and pro genetic engineering."

Matt Ridley: "Stewart Brand is the god of the environmental movement."

Naval Ravikant: "Everything by Matt Ridley is worth reading."

Neil Strauss recommended 'The Red Queen' on his website.

Matt Ridley: "Books about science tend to fall into two categories: those that explain it to lay people in the hope of cultivating a wide readership, and those that try to persuade fellow scientists to support a new theory, usually with equations.

Books that achieve both — changing science and reaching the public — are rare. Charles Darwin's 'On the Origin of Species' was one."

Paul Graham mentioned 'The Origin of Species' on Twitter.

Fred Wilson: "Talk about tenacity"

Max Levchin shared 'Endurance' on his LinkedIn page.

Charlie Munger: "Best work of science exposition and history that I've read in many years!"

Charlie Munger recommended 'A Matter of Degrees' in his book Poor Charlie's Almanack.

Patrick O'Shaughnessy: "One of the most amazing books I’ve read in the last few years.

The premise is simple: a hunt for a man-eating tiger in the remote taiga of eastern Russia circa 1997."

Tim Ferriss: "It’ll blow your mind."

Vinod Khosla: "A look into the future and how global warming will impact everything from politics to capitalism.

A great read even though I think it overstates things. It scares and it's time to be very, very scared."

Bill Miller: "You should read Bruno Latour’s quirky new book on climate change and political realinement."

Tim Ferriss: "Incredible book"

Joe Rogan: "Coyote America is amazing!"

Joe Rogan: "It's an amazing book."

One of Sam Altman's recommended books for young startup founders.

This book was on Sam Altman's bookshelf.

Tim Ferriss: "A Walk in the Woods is a great way to invigorate"

Joe Rogan: "One of the things I found interesting is the concept of 'What is Natural?'"

Tim Ferriss: "One of my favorites."

Paul Graham: "So good I'm reading slow to make it last."

One of Richard Branson's top books to read in a lifetime.

One of Richard Branson's top books to read in a lifetime.

One of Richard Branson's top books to read in a lifetime.

One of Richard Branson's top books to read in a lifetime.

One of Richard Branson's top books to read in a lifetime.

One of Richard Branson's top books to read in a lifetime.

One of Richard Branson's top books to read in a lifetime.

One of Matt Ridley's recommended books on technology and optimism.

One of Matt Ridley's recommended books on technology and optimism.

One of Matt Ridley's recommended books on technology and optimism.

Matt Ridley: “In this, his third book about energy and life, [Lane] comes triumphantly close to cracking the secret of why life is the way it is, to a depth that would boggle any ancient philosopher’s mind.”

Bill Gates: "This biology book blew me away. A compelling case for how energy made us who we are."

One of Matt Ridley's favorite science books of 2015.

Matt Ridley: "It’s a great piece of detective work on a key scientific blunder, based around the work of Steve McIntyre and Ross McKitrick, and it forensically dismantles the mistakes that led to people believing they had at last found evidence that current climate change is unprecedented in rate or scale in this millennium."

Carl Icahn mentioned 'The Humane Economy' on Twitter.

Patrick O'Shaughnessy: "A very simple filter for this recommendation: do you like chopping wood or building fires?

If the answer is yes, then you will love this book."

Patrick O'Shaughnessy: "This is the funniest travel book I’ve ever read.

My wife started giving me looks because it was making me laugh so hard in bed. It is hilarious, but it’s also incredibly well written."

Bill Gates: "I recommend The Bet to anyone wanting to understand the history of the divisive discussions we have today, especially the stalemate over climate change"

Bill Gates: "There is no author whose books I look forward to more than Vaclav Smil."