The Rosie Effect: A Novel

With The Rosie Project, “Graeme Simsion achieved the impossible and created an entirely new kind of romantic hero” (Jojo Moyes, New York Times bestselling author). Now Don Tillman returns in the hilarious and charming sequel to the international sensation. Get ready to fall in love all over again.

Don sets about learning the protocols of becoming a father, but his unusual research style gets him into trouble with the law. Fortunately his best friend Gene is on hand to offer advice: he’s left Claudia and moved in with Don and Rosie.

Picking up where The Rosie Project left off, The Rosie Effect is a fun, hilarious, and poignant read. “Don Tillman helps us believe in possibility, makes us proud to be human beings, and the bonus is this: he keeps us laughing like hell” (Matthew Quick, author of The Silver Linings Playbook).

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Published Jul 21, 2015

368 pages

Average rating: 6.97

62 RATINGS

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Community Reviews

Aravind Anilkumar
Dec 10, 2025
6/10 stars
Hardly a shadow of the first book in the series. the humour is strained and deliberate, the narration saggy and the whole thing just makes you painfully aware of how good the first book was.
Heidi Reed
Apr 01, 2025
4/10 stars
Sort of a 2 and a half stars. I was really annoyed with Rosie in this one. She knew what she was getting when she married Don, and although he causes many of his own problems, she cut him out from the pregnancy even when he was trying to help in is own unorthodox way. I may still read the third book, as I do like Don as a character and want to know where the story goes.
jablab33
Jan 14, 2024
4/10 stars
Not a fan of the new characters and storyline. Still going to give Rose Result a try.
margardenlady
Dec 27, 2023
8/10 stars
Simsion is a master at creating humorous and improbable situations. This second book in the Rosie series finds Don and Rosie married , with an unexpected pregnancy. As Don thoroughly researches gestation and parenting, hilarity and misunderstandings ensue. Sometimes like a Keystone cop routine and other times - in a manner that is just plain sweet. Definitely a fun lighthearted uplifting story.
Peanuts56
Sep 13, 2023
9/10 stars
A continuation of "The Rosie Project." Enjoyable, humorous sequel of Don's unexpected journey through Rosie's pregnancy and delivery of their baby. Leaves the reader with anticipation for the final book of the trilogy.

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