A New Book by Lindsay Oliver · October 6, 2026
Marshmallows
Are Their Favorite
Undercover at a primate lab
One investigator. Four months undercover. Getting in was the easy part.
A fast-paced true story about a hidden world, the adrenaline of going undercover, and the cost of living a lie long enough to tell the truth.
Available October 6, 2026 — Pre-order your copy today
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About Lindsay Oliver
Author · Investigator · Executive
Lindsay Oliver is an award-winning undercover investigator and writer who has spent more than two decades exposing some of the world's most hidden industries. She has personally conducted or overseen more than a hundred investigations across research laboratories, animal agriculture, zoos, circuses, and other systems that operate largely out of public view.
Her work has generated major media coverage, driven corporate and legislative change, and is featured in the documentary Eating Animals produced by Natalie Portman.
Read full bio"One of the most unsettling things about undercover work is how ordinary everything can seem while something profoundly wrong is happening."
— Lindsay Oliver
What People Are Saying
"A compelling memoir."
BookLife Reviews
"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
Media & Press
For Journalists,
Producers & Hosts
Lindsay is available for interviews, podcast appearances, and speaking engagements. The full media kit — including bio, high-resolution photography, book details, and story angles — is coming soon.
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The Story Doesn't End on the Last Page
Take action at Send Marshmallows
Reading the book is the first step. The campaign gives you what to do next.
Visit SendMarshmallows.com →