Part foreign affairs discourse, part humor, and part twisted self-help guide, The Geography of Bliss takes the listener from America to Iceland to India in search of happiness, or, in the crabby author's case, moments of "un-unhappiness". This uses a beguiling mixture of travel, psychology, science and humor to investigate not what happiness is, but where it is.

In A Human History of Emotion, Richard Firth-Godbehere takes listeners on a fascinating and wide ranging tour of the central and often under-appreciated role emotions have played in human societies around the world and throughout history — from Ancient Greece to Gambia, Japan, the Ottoman Empire, the United States, and beyond.

Overwork is the new normal. Rest is something to do when the important things are done - but they are never done. Looking at different forms of rest, from sleep to vacation, Silicon Valley futurist and business consultant Alex Soojung-Kim Pang dispels the myth that the harder we work the better the outcome. He combines rigorous scientific research with a rich array of examples of writers, painters, and thinkers - from Darwin to Stephen King - to challenge our tendency to see work and relaxation as antithetical.

When a health scare puts him in the hospital, Eric Weiner-an agnostic by default-finds himself tangling with an unexpected question, posed to him by a well-meaning nurse. "Have you found your God yet?" The thought of it nags him, and prods him-and ultimately launches him on a far-flung journey to do just that.

You’ve got questions: about space, time, gravity, and your odds of meeting your older self inside a wormhole. All the answers you need are right here. As a species, we may not agree on much, but one thing brings us all together: a need to know. We all wonder, and deep down we all have the same big questions. Why can’t I travel back in time? Where did the universe come from? What’s inside a black hole? Can I rearrange the particles in my cat and turn it into a dog?