Reddit mentions of Lend Me Your Ears: Great Speeches in History (Updated and Expanded)

Hmm...

The Art of War -- how to successfully deal with conflict

New Ideas from Dead Economists -- so that members understand how the Augustinian view of the "City of Man" works in practice

Rough Stone Rolling -- excellent biography of Joseph Smith

World War Z, Dies the Fire, or Lucifer's Hammer -- to encourage creative thinking of low-probability events, and how as a family and as an individual people would respond to life-shattering events

God Invented the Integers by Hawking (at least the biographical sections) -- so that people understand how the mathematics used to describe science came from, and so they recognize the amazing and important concepts God has inspired, and that we use every day

The Structure of Scientific Revolutions by Kuhn -- just an amazing read of how the world shifts in ideas and paradigms.

Teachings of Wilford Woodruff -- amazing experiences by President Woodruff recorded here, both from his lectures and from his journals. Not sure if it's still in print, came across it in a very old personal library on my mission

Tons of comparative mythology -- to see all the various ideas that people used to preserve their understanding of the gospel and, especially, eternal events in the face of general apostasy and illiteracy (Loki as Lucifer, anyone? Pan Gu as Christ--giving his life so the earth may live, etc.)

Declaration of Human Rights -- While perhaps this has some principles antithetical or orthogonal to Church principles, it's amazing to see what people view as the crowning ideals of a state's responsibility.

Great Speeches -- amazing speeches by historical figures

Guns, Germs, and Steel -- a great review on the development of societies. While some theories of his are not in vogue anymore, it's a great intro to prehistory

Hugh Nibley's Before Adam -- Not everyone in the Church is of the Joseph Fielding Smith school of thought regarding evolution -- many other believe similar to David O. McKay, James E. Talmage, Gordon B. Hinckley, and many others.