https://www.cnbc.com/2018/04/19/amazon-ceo-jeff-bezos-annual-shareholder-letter-reactions.html

Parsa Saljoughian, an investor at venture capital firm IVP, gives the same answer every time he's asked about his favorite business book: Amazon CEO Jeff Bezos' annual shareholder letter.

Sure, Bezos' letter is not technically a "book," he acknowledges. But when all 20 of the annual letters are put together — which amount to roughly 70 pages in total — it starts reading like any inspirational bestseller, he said.