Books both Patrick Collison and Warren Buffett recommend

poorcharliesalmanack.com

“This book is something of a publishing miracle—never advertised, yet year after year selling many thousands of copies from its Internet site.”

The page links to the book's official site, poorcharliesalmanack.com, where Buffett's blurb appears.

oreilly.com

“I read the first edition of this book early in 1950, when I was nineteen. I thought then that it was by far the best book about investing ever written. I still think it is.”

Quote is from Buffett's Preface to the Fourth Edition, reproduced in the revised edition.

berkshirehathaway.com

“An outstanding book about CEOs who excelled at capital allocation.”

Buffett praised The Outsiders in his 2012 Berkshire Hathaway shareholder letter.

Patrick Collison's Bookshelf

Flagged blue on Collison's bookshelf — substantially above average.

inc.com · warren buffett bill gates still say this is best business book ever written.html

Recommended to Bill Gates in 1991 as Buffett's favorite business book.

berkshirehathaway.com

“Carol Loomis has been invaluable to me in editing this letter since 1977.”

Patrick Collison's Bookshelf

Biography of the builder most directly responsible for the industry Collison operates in; covers both the technical invention and the organizational innovations that spread it.

amazon.com

Endorsement text is quoted on the cited book page.