Here are the 3 book recommendations the CEO of $1.7 trillion investment giant PIMCO recommended to a room full of investors

The 2018 biography of escaped slave Frederick Douglass won the Pulitzer Prize for History. The book follows Douglass's journey to become one of America's most noted orators and abolitionists.

Roman called the book a portrait of "a true American hero."

The book was also one of Obama's top picks last year. The former president and his wife said last month that they would develop a feature firm for Netflix based on the biography, among six other projects.

The 2018 biography on Winston Churchill was a New York Times bestseller. The book catalogues Churchill's journey from child to legacy, and a New York Times reviewer called it "the best single-volume biography of Churchill yet written."

Roman said the book was "wonderful and very amusing."

Aryeh Bourkoff, the tech, media, and telecom banker who founded LionTree Advisors, also recommended the book in an end-of-year staff memo, Business Insider reported in December.

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