Jennifer Hillier

About

Hi, I’m Jennifer. I imagine the worst about people, and then write about it. 

I’ve published seven books so far, and my newest thriller, Heart of Glass, will be out on August 25, 2026 from Minotaur Books.

My most recent novel is the USA TodayToronto Star, and The Globe and Mail bestselling Things We Do in the Dark, winner of the ITW Thriller Award for Best Audiobook. Described as “an intoxicating thrill ride” by the New York Times and “propulsive and chilling” by People magazine, it was a Book of the Month Club selection, an Indigo Top Ten Best Book of the Year, an Amazon Editor’s Spotlight Pick, a Loan Stars pick, and my third consecutive novel to be honored as a LibraryReads pick, which places me in their Hall of Fame.

I’m also the author of six other psychological thrillers. My USA Today bestselling novel Little Secrets was a finalist for the Los Angeles Times Book Prize and the Anthony Award. Jar of Hearts won the ITW Thriller Award for Best Hardcover Novel and was also shortlisted for the Anthony and Macavity Awards. 

My earlier novels are CreepFreakThe Butcher, and Wonderland, which have all been reissued by Gallery Books in beautiful trade paperback formats. 

My books have been published in twenty-three languages so far.

I’m Filipino-Canadian, born and raised in Toronto, but I spent eight amazing years living in Seattle which is where I first became a published author. I’m a Seahawks fan who married a Packers guy, and we have a son in middle school who wishes I wrote books like Jeff Kinney’s Diary of a Wimpy Kid series (me too, kid, me too). 

I’m afraid of the dark and can’t sleep unless I’ve checked the locks on the doors several times. I love writing when it’s raining, sleeping when it’s sunny, and reading after everyone else has gone to bed. I’m a cat person without a cat, which makes me sad. But I’m now back in the Toronto area permanently with my family, which makes me happy.

I write an essay-style newsletter, which I mostly forget to send out, but when I do, I think it’s pretty good. You can sign up here. I promise I don’t spam—mostly I write about my writing journey and the lessons I’ve learned—and occasionally I give stuff away.

You can also find me on Instagram, Facebook, and TikTok, but hopefully not every day.