Download the ebook (EPUB) here to read on any device you’d like. We've included three files—each one is optimized for a different reading platform (Apple, Kindle, and Kobo), but you can open any EPUB on any e-reading app or device.
It looks best on color e-readers and tablets (especially in vertical scroll mode), but also fine on phones and black-and-white e-readers. The best ebook experience we’ve seen is Apple Books > iPad > vertical scroll.
This purchase is for the ebook only. To bundle with the audiobook for $24.99 (originally $34), click here.
The book is also separately available as a series on Wait But Why ($12.99), with a nice new page design, full-size images, and the best footnote experience. Or you can buy it through most major ebook resellers (except Nook), like Kindle or Books—see all the buying options here.