The goal of the Book Engineer is to collaborate with storytellers, agents, and publishers to conceptualize and create books that the market needs. Find out how the Book Engineer can help you.


The Book Engineer works with artists, actors, journalists, politicians, athletes, musicians, scientists, chefs, CEOs, and other influencers to conceptualize and create stories that only they could tell. Learn more.


If you have clients who need help finding, writing, and delivering that next project, the Book Engineer can work with them to get it done. Learn more.


The Book Engineer is here to help you meet market needs by finding the writer, creating the proposal, and making the book that you’re dreaming of exist. Learn more.


If you produce TV, movies, video games, toys, or web content, the Book Engineer can work with you to design a tie-in publishing program. Learn more.

If you have a story, the Book Engineer can help you tell it.

And if you need a story, the Book Engineer can help you find it.

Leila Sales founded the Book Engineer after more than a decade in New York City publishing, where she edited award-winning and bestselling fiction and nonfiction books for readers of all ages. Her authors have included award-winning actors Viola Davis and Bob Balaban; New York Times bestselling authors Gayle Forman, Max Brallier, and Ame Dyckman; National Book Award Finalist Elizabeth Partridge; MacArthur Fellow Xu Bing; and many more. Leila has also managed classic children’s publishing properties including Corduroy, Angelina Ballerina, Ferdinand, The Snowy Day, and others. Additionally, she is the author of seven critically acclaimed novels for children and young adults, including This Song Will Save Your Life and Once Was a TimeLearn more.

What we’ve edited

What we’ve written

What we’ve created

Leila is a fantastic editor. She’s great with the biggest big picture stuff and she’s great with the tiniest details. Her creative vision has been invaluable. And, maybe most importantly, Leila is kind, patient, and always enjoyable to work with.

Max BrallierNew York Times bestselling author of The Last Kids on Earth series

Leila is a rare combination of creative and pragmatic, artistic and business-oriented. She is an all-around joy to work with, and a true collaborator. Working with her is as productive as it is fun. Any author trying to improve their writing would be lucky to have Leila’s thoughts on their work. Funny, gregarious, well-read, smart, and professional, Leila is a credit to the book industry.

Joy Peskin, editorial director at Farrar, Straus and Giroux Books for Young Readers