99% Invisible is a big-ideas podcast about small-seeming things, revealing stories baked into the buildings we inhabit, the streets we drive, and the sidewalks we traverse. The show celebrates design and architecture in all of its functional glory and accidental absurdity, with intriguing tales of both designers and the people impacted by their designs.

For centuries, poets and philosophers extolled the benefits of a walk in the woods: Beethoven drew inspiration from rocks and trees; Wordsworth composed while tromping over the heath; Nikola Tesla conceived the electric motor while visiting a park. Intrigued by our storied renewal in the natural world, Florence Williams sets out to uncover the science behind nature's positive effects on the brain.

From our offices and homes to schools, hospitals, and restaurants, the indoor spaces where we work, learn, play, eat, and heal have an outsized impact on our performance and well-being. They affect our creativity, focus, and problem-solving ability and can make us sick - jeopardizing our future and dragging down profits in the process. Joseph Allen and John Macomber make a compelling case in this urgently needed book for why every business and home owner should make certain relatively low-cost investments a top priority.

After decades of unchecked sprawl, more people than ever are moving back to the city. Dense urban living has been prescribed as a panacea for the environmental and resource crises of our time. But is it better or worse for our happiness? Are subways, sidewalks, and tower dwelling improvements on the car dependence of sprawl?

In The Alchemy of Us, scientist and science writer Ainissa Ramirez examines eight inventions - clocks, steel rails, copper communication cables, photographic film, light bulbs, hard disks, scientific labware, and silicon chips - and reveals how they shaped the human experience. Ramirez tells the stories of the woman who sold time, the inventor who inspired Edison, and the hotheaded undertaker whose invention pointed the way to the computer.

Thirty years after its publication, The Death and Life of Great American Cities was described by The New York Times as "perhaps the most influential single work in the history of town planning....[It] can also be seen in a much larger context. It is first of all a work of literature; the descriptions of street life as a kind of ballet and the bitingly satiric account of traditional planning theory can still be read for pleasure even by those who long ago absorbed and appropriated the book's arguments."

Every great drink starts with a plant. Sake began with a grain of rice. Scotch emerged from barley. Gin was born from a conifer shrub when medieval physicians boiled juniper berries with wine to treat stomach pain. The Drunken Botanist uncovers the surprising botanical history and fascinating science and chemistry of over 150 plants, flowers, trees, and fruits (and even a few fungi).

Roughly half the world's population speaks languages derived from a shared linguistic source known as Proto-Indo-European. But who were the early speakers of this ancient mother tongue, and how did they manage to spread it around the globe? The Horse, the Wheel, and Language solves a puzzle that has vexed scholars for two centuries and recovers a magnificent and influential civilization from the past.

The grid is an accident of history and of culture, in no way intrinsic to how we produce, deliver and consume electrical power. Yet this is the system the United States ended up with, a jerry-built structure now so rickety and near collapse that a strong wind or a hot day can bring it to a grinding halt. The grid is now under threat from a new source: renewable and variable energy, which puts stress on its logics as much as its components.

Is Italian olive oil really Italian, or are we dipping our bread in lamp oil? Why are we masochistically drawn to foods that can hurt us, like hot peppers? Far from being a classic American dish, is apple pie actually...English? Matt Siegel sets out “to uncover the hidden side of everything we put in our mouths”. Siegel also probes subjects ranging from the myths - and realities - of food as aphrodisiac, to how one of the rarest and most exotic spices in all the world (vanilla) became a synonym for uninspired sexual proclivities.

The Secret Lives of Color tells the unusual stories of 75 fascinating shades, dyes, and hues. From blonde to ginger, the brown that changed the way battles were fought to the white that protected against the plague, Picasso’s blue period to the charcoal on the cave walls at Lascaux, acid yellow to kelly green, and from scarlet women to imperial purple, these surprising stories run like a bright thread throughout history. In this book, Kassia St. Clair has turned her lifelong obsession with colors and where they come from into a unique study of human civilization.

Bill Gates shares what he's learned in more than a decade of studying climate change and investing in innovations to address the problems, and sets out a vision for how the world can build the tools it needs to get to zero greenhouse gas emissions. Bill Gates explains why he cares so deeply about climate change and what makes him optimistic that the world can avoid the most dire effects of the climate crisis. Gates says, "We can work on a local, national, and global level to build the technologies, businesses, and industries to avoid the worst impacts of climate change."

Even the smartest among us can feel inept as we fail to figure out which light switch or oven burner to turn on, or whether to push, pull, or slide a door. The fault, argues this ingenious - even liberating - audiobook, lies not in ourselves, but in product design that ignores the needs of users and the principles of cognitive psychology. The Design of Everyday Things shows that good, usable design is possible. The rules are simple: make things visible, exploit natural relationships that couple function and control, and make intelligent use of constraints.

Henry at Work invites listeners to rethink how we work today by exploring an aspect of Henry David Thoreau that has often been overlooked: Thoreau the worker. John Kaag and Jonathan van Belle overturn the popular misconception of Thoreau as a navel-gazing recluse who was scornful of work and other mundanities. In fact, Thoreau worked hard—surveying land, running his family's pencil-making business, writing, lecturing, and building his cabin at Walden Pond—and thought intensely about work in its many dimensions.

New York Times best-selling author Dan Heath examines how to prevent problems before they happen, drawing on insights from his innovative behavior research, as well as hundreds of new interviews with unconventional problem solvers. Most of us spend our days handling a deluge of pressing issues. We’re so accustomed to managing emergencies as they strike that we often don’t stop to think about how we could prevent crises before they happen. Why stop at treating the symptoms when you could develop a cure?