From ‘Salt’ to ‘Blue’: 9 non-fiction books that will make you more interesting at dinner parties

Benjamin Lorr investigates the hidden, complex machinery that allows modern supermarkets to offer endless variety at low costs. Lorr spent years tracking supply chains, embedding with long-haul truckers, analyzing the cutthroat fight for retail shelf space, and tracing the labor conditions behind international seafood exports. The book dissects the precise logistics of third-party food certifications, store layout economics, and the extreme efficiency demands placed on human workers. It exposes the reality that seamless consumer convenience relies on a brittle, highly leveraged human infrastructure.

Art historian Jack Hartnell explores how medieval people understood their physical existence, structuring his narrative around individual anatomical parts. Moving from head to toe, Hartnell combines medical manuscripts, religious relics, and artistic representations to explain a world ruled by Galenic humoral theory. The book illustrates how medieval societies viewed physical health as intrinsically linked to spiritual balance, environmental forces, and moral standing. Hartnell covers topics including early surgical procedures, sumptuary laws governing clothing, and the cultural reverence for saintly bones, presenting a detailed view of medieval life that challenges modern assumptions.

Michael Pollan flips the standard perspective on domestication, arguing that plants have manipulated human desires to ensure their own evolutionary success. The narrative centers on four species—the apple, the tulip, marijuana, and the potato—and pairs each with a fundamental human drive: sweetness, beauty, intoxication, and control. Pollan demonstrates how the desire for sweetness spread the apple across North America via Johnny Appleseed, while the obsession with floral aesthetic caused financial chaos during Dutch Tulip Mania. The text offers a compelling biological viewpoint that treats humans as unwitting agents of floral expansion.

Mortician Caitlin Doughty travels across the globe to document how different cultures handle human remains, contrasting these traditions with the commercialized American funeral industry. Doughty investigates open-air pyres in Colorado, Indonesian communities in Tana Toraja who live alongside mummified relatives, and Japanese columbaria that use robotic systems to manage cremated remains. The narrative examines how legal, ecological, and cultural factors shape mourning rituals. It presents a clear-eyed assessment of how alternative end-of-life practices can offer more personal engagement with mortality.

Historian Michel Pastoureau tracks the social and cultural transformation of the color blue within Western Europe. In ancient Rome, blue was associated with barbarians and held little prestige. By the High Middle Ages, however, blue became a central color of royalty and religious devotion, largely driven by new blue glass manufacturing techniques and the veneration of the Virgin Mary. Pastoureau covers the economic battles between woad producers and indigo importers, the adoption of blue in military uniforms, and its eventual status as the West’s favorite color. The work shows how human perception of color is a social construct rather than a static physical fact.

Mary Roach focuses on the biological and psychological challenges of human space travel, omitting the typical grand narratives of rocket engineering. Roach examines the unglamorous mechanics of surviving in zero gravity, exploring space toilet design, isolation experiments, motion sickness, and food dynamics. Drawing on archival research and interviews with space agency scientists, the text details how human physiology reacts when stripped of gravity. It provides a realistic, humorous look at the absurdities involved in keeping a human body functioning in space.

Linguist Amanda Montell analyzes how fanatic groups use specific language techniques to build community, establish authority, and enforce compliance. Montell examines a broad spectrum of organizations, ranging from destructive religious cults like Scientology and Heaven’s Gate to modern multi-level marketing schemes and fitness movements. The text highlights how subtle linguistic devices, such as loaded language, thought-terminating clichés, and exclusive jargon, gradually alter a person’s cognitive framework. It demonstrates how easily language can be weaponized to influence human behavior.

Geoff Manaugh analyzes urban architecture through the eyes of a burglar, demonstrating how criminals exploit the built environment in ways designers never intended. Manaugh draws on interviews with reformed bank robbers, FBI agents, and architectural theorists to show how break-ins rely on understanding spatial loopholes—such as shared maintenance shafts, drywall construction, and regional building codes.The book covers famous bank heists, getaway routes across Los Angeles highways, and police helicopter surveillance tactics. It reframes the city as a complex puzzle defined by its vulnerabilities.

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