Princeton UP Ideas Podcast

As a child in the foothills of the Himalayas, Priyanka Kumar was entranced by forest-like orchards of diverse and luscious fruit--especially apples. These biodiverse orchards seemed worlds away from the cardboard apples that lined supermarket shelves in the United States. Yet on a small patch of woods near her home in Santa Fe, Kumar discovered a wild apple tree--and the seeds of an odyssey were planted. Could the taste of a feral apple offer a doorway to the wild? In The Light Between Apple Trees: Rediscovering the Wild Through a Beloved American Fruit (Island Press, 2026), Kumar takes us on a dazzling and transformative journey to rediscover apples, unearthing a rich and complex history while illuminating how we can reimagine our relationship with nature.

Apples are popular, but in our everyday lives we rarely encounter more than a handful of varieties: of the sixteen thousand apple varieties once celebrated in America, scarcely a fifth remain accessible. Kumar reveals the richness of a hidden world, bringing readers to the vibrant forests and orchards where historic trees still survive. These mature and wild orchards offer more than just fruit: they are havens for creatures from hummingbirds to bears and a living connection to generations past. She brilliantly weaves together science and childhood memories with the apple's storied history, from its roots in Kazakhstan to Spanish orchards in the Southwest and Thomas Jefferson's beloved Monticello fruitery.

The Light Between Apple Trees is a lyric odyssey that will forever change how you look at an "apple a day." Kumar shows how--if we follow untamed paths--the tang and texture of an apple can lead us back to the wild.

Priyanka Kumar is a nationally-acclaimed naturalist and the author. Kumar has taught at the University of California Santa Cruz and the University of Southern California, and serves on the Advisory Council of the Leopold Writing Program.

Caleb Zakarin is the CEO and Publisher of the New Books Network.

The Origins of the New (Princeton University Press, 2026) presents a revolutionary approach to evolutionary success in all realms of life. In this groundbreaking book, Douglas Erwin takes readers on a dazzling excursion across science and history to explore how evolution generates new and enduring features in biology, culture, and technology.Erwin begins by tracing how thinkers from Darwin’s time to the present day have sought to discover the driving mechanisms of evolutionary novelty. He then lays out compelling empirical evidence for separating novelty from innovation, showing that novelty involves the emergence of unique characteristics, while innovation concerns the success of those characteristics over time. Erwin develops a unifying conceptual framework for these powerful dynamics, demonstrating how they have shaped everything from the evolution of avian feathers and flight to the creation of human language and the breathtaking advances in digital computing we’re witnessing today.A landmark work that redefines our understanding of the changes happening all around us, The Origins of the New reveals how the forces of novelty and innovation are the same across nature and culture, continually producing new forms and refashioning the world as we know it.

Our guest is doctor Doug Erwin, who is an independent researcher at the Santa Fe Institute, after retiring as Senior Scientist and Curator of Paleobiology at the National Museum of Natural History of the Smithsonian Institution.

Our host is Eleonora Mattiacci, an Associate Professor of Political Science at Amherst College. She is the author of "Volatile States in International Politics" (Oxford University Press, 2023).

It’s one of the biggest questions in economic history: How did a richer, more advanced China fall behind Europe? Why was Europe the home of the Industrial Revolution, and not China? And what does that journey tell us about politics and culture?

In Two Paths to Prosperity: Culture and Institutions in Europe and China, 1000–2000 (Princeton UP, 2025), Guido Tabellini, alongside his co-authors, argues that the answer comes from how European and Chinese organized cooperation—through corporations in Europe and through clans in China—and how that shaped each one’s society.

Guido Tabellini is the Intesa Sanpaolo Chair in Political Economics and Vice President at Bocconi University.

The African Gold Coast writer and statesman J. E. Casely Hayford (1866–1930) was a key figure in liberal anticolonial thought as well as African and British imperial literary and intellectual history. In The Letter of the Law in J. E. Casely Hayford's West Africa (Princeton UP, 2026) Jeanne-Marie Jackson positions his career as an intriguing case study of anticolonial literature and politics. Jackson maps the contours of Casely Hayford’s thought through sustained attention to his written work within its Gold Coast and British imperial contexts, demonstrating the far-reaching conceptual and aesthetic resources of his elite legal background.Treating Casely Hayford’s 1911 novel, Ethiopia Unbound, as a constitutional document and his legal writings as literary exemplars, Jackson breaks down artificial divisions between African textual traditions. The law, for Casely Hayford and his Fante nationalist peers, was intimately bound to the virtues they attached to textuality: clear-headedness, moderation, restraint, and public discernment. Jackson argues for this liberal disposition as a crucial and neglected part of anticolonial intellectual and political history. Colonial-era legal debates framed the rise of an influential, consummately modern Gold Coast leader deemed fit to steer ambitious new pan-African institutions, and, in Jackson’s telling, Casely Hayford emerges as his era’s most emblematic figure.

Jeanne-Marie Jackson is a Professor of English at Johns Hopkins University and the Director of the Alexander Grass Humanities Institute.

Elisa Prosperetti is an Assistant Professor of African and global history at NIE/NTU in Singapore.

Why did Langston Hughes's translations of Mexican and Cuban stories go unpublished for nearly a century?

A landmark book—the first complete publication of Langston Hughes’s translations of thirty-three stories by eighteen Mexican and Cuban writers In late 1934, Langston Hughes, already established as a leading voice of literary Black America, traveled to Mexico City, where he stayed for more than five months and began translating short fiction by prominent Mexican and Cuban writers. These stories, as he wrote to a friend, explore “the revolutions and uprisings, sugar cane, Negroes, Indians, corrupt generals, [and] American imperialists,” and are “mostly all left stories, because practically all the writers down here are left these days.” But when Hughes proposed publishing the stories as a book, to be titled Troubled Lands: Stories of Mexico and Cuba as Translated by Langston Hughes (Princeton University Press, 2026), his agent discouraged him from further pursuing the project and it remained unpublished, until now, with only a handful of the translations making their way into contemporary magazines. This volume presents Hughes’s translations of these stories together for the first time as he originally envisioned. Edited by Ricardo Wilson, the book also features an introduction and brief biographies of the included writers. Troubled Lands features thirty-three stories by eighteen writers, including Rafael Felipe Muñoz, Nellie Campobello, Lino Novás Calvo, Luis Felipe Rodríguez, Germán List Arzubide, Pablo de la Torriente-Brau, and Juan de la Cabada. The collection depicts Mexico in the wake of its revolution and Cuba in the years between the brutal regimes of Machado and Batista. Hughes was a noted translator of poetry, but his commitment to translating fiction is less well known. Troubled Lands provides a window into this important dimension of his work and illuminates his deep interest in Mexico and Cuba.

Ricardo A. Wilson II is a creative writer and scholar. He is associate professor of English at Williams College and founder and executive director of The Outpost Foundation.

Caleb Zakarin is CEO and Publisher of the New Books Network.