Order the Book

Marshmallows Are
Their Favorite

Undercover at a Primate Lab

Available now
In hardcover & ebook

Marshmallows Are Their Favorite — book cover

One investigator. Four months undercover. Getting in was the easy part.

A fast-paced true story about life undercover at a US National Primate Research Center, the monkeys whose stories have never been told, and the cost of living a lie long enough to tell the truth.

Ender Press · Hardcover & Ebook

Classroom, library, book club, and organizational orders — get in touch for bulk pricing at info@lindsayoliver.com.

The open collector's box holding the signed book, a plush monkey and a pouch

Limited Edition

The Collector's Box

$125

A signed hardcover, a plush monkey named Omelet, and eight more custom-designed pieces in an embossed keepsake box. Made in a small run — when they're gone, they're gone.

How You Can Help

Three things that make a difference

01

Buy the book

This is the most helpful thing you can do. Sales signal demand to stores and influence how far the story reaches.

02

Tell someone about it

Share it with friends and family, post about it, or mention it to your book club. Word of mouth is often underrated!

03

Add it on Goodreads

Mark it Want to Read on Goodreads. It puts the book in front of other readers and helps it surface in recommendations.

What People Are Saying

"A thriller, an exposé, even a love story. But even more than that, it is an intensely personal and revealing journey of one woman willing to risk her own safety as she navigates two identities in an attempt to shine a light on the truth."

Ari Solomon & Mikko Alanne

Award-winning producers of The Animal People

"Unforgiving, empathetic, raw and real. An eye-opener. A broken system that is fundamentally cruel, crude, and irrelevant in these technological times."

Ingrid Newkirk

Founder and Principal, PETA, and author of numerous books, including Animalkind

"Lindsay Oliver's courageous work clearly and shockingly reveals that too often scientists neglect this basic responsibility to nature's sentient and vulnerable beings. This honest story must be told."

John Gluck, Ph.D.

Professor Emeritus, former animal researcher, and author of Voracious Science and Vulnerable Animals

Read all the reviews

Why It Matters

Order Marshmallows Are Their Favorite by Lindsay Oliver

The book is out now in hardcover and ebook. Every copy sold — and every review left — carries the story further than it would otherwise go.