What is ethics? Where do moral standards come from? Are they based on emotions, reason, or some innate sense of right and wrong?

For many scientists, the key lies entirely in biology—especially in Darwinian theories of evolution and self-preservation. But if evolution is a struggle for survival, why are we still capable of altruism?

In his classic study The Expanding Circle, Peter Singer argues that altruism began as a genetically based drive to protect one’s kin and community members but has developed into a consciously chosen ethic with an expanding circle of moral concern.

Drawing on philosophy and evolutionary psychology, he demonstrates that human ethics cannot be explained by biology alone. Rather, it is our capacity for reasoning that makes moral progress possible. In a new afterword, Singer takes stock of his argument in light of recent research on the evolution of morality.

Even before the publication of his seminal Animal Liberation in 1975, Peter Singer, one of the greatest moral philosophers of our time, unflinchingly challenged the ethics of eating animals. Now, in Why Vegan?, Singer brings together the most consequential essays of his career to make this devastating case against our failure to confront what we are doing to animals, to public health, and to our planet.

From his 1973 manifesto for Animal Liberation to his personal account of becoming a vegetarian in “The Oxford Vegetarians” and to investigating the impact of meat on global warming, Singer traces the historical arc of the animal rights, vegetarian, and vegan movements from their embryonic days to today, when climate change and global pandemics threaten the very existence of humans and animals alike. In his introduction and in “The Two Dark Sides of COVID-19,” cowritten with Paola Cavalieri, Singer excoriates the appalling health hazards of Chinese wet markets―where thousands of animals endure almost endless brutality and suffering―but also reminds westerners that they cannot blame China alone without also acknowledging the perils of our own factory farms, where unimaginably overcrowded sheds create the ideal environment for viruses to mutate and multiply.

Spanning more than five decades of writing on the systemic mistreatment of animals, Why Vegan? features a topical new introduction, along with nine other essays, including:

Written in Singer’s pellucid prose, Why Vegan? asserts that human tyranny over animals is a wrong comparable to racism and sexism. The book ultimately becomes an urgent call to reframe our lives in order to redeem ourselves and alter the calamitous trajectory of our imperiled planet.

The Old Man and the Gun is the incredible story of a bank robber and prison escape artist who modeled himself after figures like Pretty Boy Floyd and who, even in his seventies, refuses to retire. True Crime follows the twisting investigation of a Polish detective who suspects that a novelist planted clues in his fiction to an actual murder. And The Chameleon recounts how a French imposter assumes the identity of a missing boy from Texas and infiltrates the boy’s family, only to soon wonder whether he is the one being conned. In this mesmerizing collection, David Grann shows why he has been called a “worthy heir to Truman Capote” and “simply the best narrative nonfiction writer working today,” as he takes the reader on a journey through some of the most intriguing and gripping real-life tales from around the world.

Henry Worsley was a devoted husband and father and a decorated British special forces officer who believed in honor and sacrifice. He was also a man obsessed. He spent his life idolizing Ernest Shackleton, the nineteenth-century polar explorer, who tried to become the first person to reach the South Pole, and later sought to cross Antarctica on foot. Shackleton never completed his journeys, but he repeatedly rescued his men from certain death, and emerged as one of the greatest leaders in history.

Worsley felt an overpowering connection to those expeditions. He was related to one of Shackleton’s men, Frank Worsley, and spent a fortune collecting artifacts from their epic treks across the continent. He modeled his military command on Shackleton’s legendary skills and was determined to measure his own powers of endurance against them. He would succeed where Shackleton had failed, in the most brutal landscape in the world.

In 2008, Worsley set out across Antarctica with two other descendants of Shackleton’s crew, battling the freezing, desolate landscape, life-threatening physical exhaustion, and hidden crevasses. Yet when he returned home he felt compelled to go back. On November 13, 2015, at age 55, Worsley bid farewell to his family and embarked on his most perilous quest: to walk across Antarctica alone. David Grann tells Worsley’s remarkable story with the intensity and power that have led him to be called “simply the best narrative nonfiction writer working today.” Illustrated with more than fifty stunning photographs from Worsley’s and Shackleton’s journeys, The White Darkness is both a gorgeous keepsake volume and a spellbinding story of courage, love, and a man pushing himself to the extremes of human capacity.

One World Now seamlessly integrates major developments of the past decade into Peter Singer’s classic text on the ethics of globalization, One World. Singer, often described as the world’s most influential philosopher, here addresses such essential concerns as climate change, economic globalization, foreign aid, human rights, immigration, and the responsibility to protect people from genocide and crimes against humanity, whatever country they may be in. Every issue is considered from an ethical perspective. This thoughtful and important study poses bold challenges to narrow nationalistic views and offers valuable alternatives to the state-centric approach that continues to dominate ethics and international theory. Singer argues powerfully that we cannot solve the world’s problems at a national level, and shows how we should build on developments that are already transcending national differences. This is an instructive and necessary work that confronts head-on both the perils and the potentials inherent in globalization.

Peter Singer’s books and ideas have been disturbing our complacency ever since the appearance of Animal Liberation. Now he directs our attention to a new movement in which his own ideas have played a crucial role: effective altruism. Effective altruism is built upon the simple but profound idea that living a fully ethical life involves doing the “most good you can do.” Such a life requires an unsentimental view of charitable giving: to be a worthy recipient of our support, an organization must be able to demonstrate that it will do more good with our money or our time than other options open to us. Singer introduces us to an array of remarkable people who are restructuring their lives in accordance with these ideas, and shows how living altruistically often leads to greater personal fulfillment than living for oneself.

The Most Good You Can Do develops the challenges Singer has made, in the New York Times and Washington Post, to those who donate to the arts, and to charities focused on helping our fellow citizens, rather than those for whom we can do the most good. Effective altruists are extending our knowledge of the possibilities of living less selfishly, and of allowing reason, rather than emotion, to determine how we live. The Most Good You Can Do offers new hope for our ability to tackle the world’s most pressing problems.

In 2009, Peter Singer wrote the first edition of The Life You Can Save to demonstrate why we should care about and help those living in global extreme poverty, and how easy it is to improve and even save lives by giving effectively. Peter then founded a nonprofit organization of the same name, The Life You Can Save, to advance the ideas in the book. Together, the book and organization have helped raise millions of dollars for effective charities, supporting work protecting people from diseases, restoring sight, avoiding unwanted pregnancies, ensuring that children get the nutrients they need, and providing opportunities to not only survive but thrive.

In the decade since the first book’s publication, dramatic progress has been made in reducing global extreme poverty. However, millions still live on less than $1.90 a day, and there is yet much to be done.

To address the continuing need, and to build on the success of the first edition, Singer acquired the book rights and updated the content to be current and even more relevant. With mission-aligned celebrity narrators and by giving away the audiobook and e-book for free (in addition to having it available for purchase through traditional e-commerce and retailers), the 10th-anniversary edition of The Life You Can Save aims to inform, inspire and empower as many people as possible to act now and save lives.

Peter Singer is often described as the world’s most influential philosopher. He is also one of its most controversial. The author of important books such as Animal Liberation, Practical Ethics, Rethinking Life and Death, and The Life You Can Save, he helped launch the animal rights and effective altruism movements and contributed to the development of bioethics. Now, in Ethics in the Real World, Singer shows that he is also a master at dissecting important current events in a few hundred words.

In this book of brief essays, he applies his controversial ways of thinking to issues like climate change, extreme poverty, animals, abortion, euthanasia, human genetic selection, sports doping, the sale of kidneys, the ethics of high-priced art, and ways of increasing happiness. Singer asks whether chimpanzees are people, smoking should be outlawed, or consensual sex between adult siblings should be decriminalized, and he reiterates his case against the idea that all human life is sacred, applying his arguments to some recent cases in the news. In addition, he explores, in an easily accessible form, some of the deepest philosophical questions, such as whether anything really matters and what is the value of the pale blue dot that is our planet. The collection also includes some more personal reflections, like Singer’s thoughts on one of his favorite activities, surfing, and an unusual suggestion for starting a family conversation over a holiday feast.

Provocative and original, these essays will challenge―and possibly change―your beliefs about a wide range of real-world ethical questions.

After stumbling upon a hidden trove of diaries, acclaimed writer David Grann set out to determine what happened to the British explorer Percy Fawcett and his quest for the Lost City of Z. For centuries Europeans believed the Amazon, the world’s largest rain forest, concealed the glittering kingdom of El Dorado. Thousands had died looking for it, leaving many scientists convinced that the Amazon was truly inimical to humankind. In 1925 Fawcett ventured into the Amazon to find an ancient civilization, hoping to make one of the most important discoveries in history. Then he vanished. Over the years countless perished trying to find evidence of his party and the place he called “The Lost City of Z.”

In this masterpiece, journalist David Grann interweaves the spellbinding stories of Fawcett’s quest for “Z” and his own journey into the deadly jungle.

Whether David Grann is investigating a mysterious murder, tracking a chameleon-like con artist, or hunting an elusive giant squid, he has proven to be a superb storyteller. In The Devil and Sherlock Holmes, Grann takes the reader around the world, revealing a gallery of rogues and heroes with their own particular fixations who show that truth is indeed stranger than fiction.