Well, we give a lot of books as presents because we’re always evangelizing and proselytizing for plant-based nutrition, for the environment and sustainability and things like that. Suzy, every year, makes up a gift bag on a theme. But usually, the theme is around sustainability. And there are always some books in there. So we give out a lot of books.

At Play in the Fields of the Lord by Peter Matheson. I also recently read Sapiens by a guy named Harari. And I’m going to give that thing over and over again to everyone I know.

This question, I’m going to sound like a scientist here but one of the books that I’ve given out a lot is called The Craft of Scientific Writing . It’s certainly something that I’m working on but when I’ve gifted books, it’s often been either to a colleague or definitely new, up and coming people in the discipline of science. The way you write scientifically is obviously different from other writing. If you want to write scientifically but in a compelling way for individuals to try and translate the science into the lay public, for example, that’s really what I try to do with The One Minute Workout is boil the science down, write it in a compelling and accessible manner. Certainly I’ve had tremendous assistance from a colleague, Christopher Shogen who is just a tremendous writer. And we know we are on the right spot where I was happy from the scientific message, and Chris was happy with the writing, or at least the readability or the accessibility of the writing style. That’s a real challenge, of course. It’s an art as much as it is a science. So, a book like The Craft of Scientific Writing helps provide some tips there because if you’re a scientist coming up, you’re constantly writing. You’re writing grants, you’re writing papers and you want to convince people with the point that you’re making. You don’t want to bore them and you want to do it in a compelling manner. Tim Ferriss:

I think a lot of them will probably be in the cooking space. Definitely On Food and Cooking . I’ve gifted that a lot. My career starts with that book in many ways. There wouldn’t be any of this modern cooking movement without Harold’s book, I don’t think. There certainly wouldn’t be modernist cuisine that played a big role in my career without that book. So I’ve gifted that a lot because I think it’s relevant and I think for a certain type of individual, it’s the kind of book that every time you open it up, you see something. You’re like, “I didn’t even know that was there; that’s super cool.” And you read something and go, “The world is way more interesting than I thought.” I think I’ve gifted Michel Bras’s Essential Cuisine quite a bit, although it’s hard to do now because I think it’s out of print in English and quite expensive. The other book I found myself gifting a lot lately is an out-of-print book on thermodynamics called The Second Law . It was written by an Oxford physical chemistry professor named P.W. Atkins. That book is just a phenomenal, casual, infographic-laden read on how the world works from an energy perspective. I found that so incredibly useful in trying to understand how to do something, how to make something work, whether something’s even possible. It’s frequently my bullshit detector. When somebody’s trying to convince me some technology or some idea has merit, I very quickly come back to just sketching out the kind of thing I did for that email, where it’s like, let me just see – with knowing nothing about the subject, if I can just sketch out the basic ideas of how much energy is going to be involved or consumed or if I assume limitless capacities, does this make any sense ever? So many things sound good, but just don’t pass muster as soon as you start looking at the world that way. You’re like, “Well, that’s clearly just a waste of everybody’s time and we should just stop and go do this thing over here,” which at least you’re not having to invent new physics or violate the laws of physics to go do it.