- A Christmas carol, Charles Dickens ; [art by] Brett Helquist ; [abridged by Josh Greenhut]
- Groundhog's day off, Robb Pearlman ; illustrated by Brett Helquist
- Chasing Vermeer, by Blue Balliett ; illustrated by Brett Helquist
- The dragon lantern, a League of Seven novel, Alan Gratz ; Illustrations by Brett Helquist
- The Vengekeep prophecies, Brian Farrey ; illustrated by Brett Helquist
- The revenge of Randal Reese-Rat, Tor Seidler ; pictures by Brett Helquist
- The lump of coal, Lemony Snicket ; art by Brett Helquist
- Scary stories to tell in the dark, collected from folklore, retold by Alvin Schwartz ; illustrated by Brett Helquist
- The bad beginning : a series of unfortunate events / Lemony Snicket ; illustrated by Brett Helquist
- The Beatrice letters, [Lemony Snicket ; illustrated by Brett Helquist]
- The wide window, by Lemony Snicket ; illustrations by Brett Helquist
- Guys read, thriller, edited and with an introduction by Jon Scieszka ; stories by M.T. Anderson [and 9 others] ; with illustrations by Brett Helquist
- Scary stories 3, more tales to chill your bones, collected from folklore and retold by Alvin Schwartz ; illustrated by Brett Helquist
- The monster war, a League of Seven novel/, Alan Gratz ; illustrations by Brett Helquist
- The reptile room, by Lemony Snicket ; illustrations by Brett Helquist
- La habitación de los reptiles = reptile room, de Lemony Snicket ; ilustraciones de Brett Helquist ; [traducción de Néstor Busquets]
- The miserable mill, by Lemony Snicket ; illustrations by Brett Helquist
- Bud Barkin, private eye, James Howe ; illustrated by Brett Helquist
- The reptile room, by Lemony Snicket ; illustrations by Brett Helquist
- The Calder game, by Blue Balliett ; illustrated by Brett Helquist
- The Wright 3, by Blue Balliett ; illustrated by Brett Helquist
- Scary stories 3, more tales to chill your bones, collected from folklore and retold by Alvin Schwartz ; illustrated by Brett Helquist
- Nadya Skylung and the masked kidnapper, Jeff Seymour ; illustrated by Brett Helquist
- Cézanne's parrot, by Amy Guglielmo ; illustrated by Brett Helquist
- The Shadowhand Covenant, Book Two of the Vengekeep Prophecies on the cover, Brian Farrey ; illustrated by Brett Helquist
- The penultimate peril, by Lemony Snicket ; illustrations by Brett Helquist
- Elefantastic!, a story of magic in 5 acts : light verse on a heavy subject, by Jane Yolen ; illustrated by Brett Helquist
- The Nutcracker mice, Kristin Kladstrup ; illustrated by Brett Helquist
- A series of unfortunate events, the ominous omnibus, by Lemony Snicket ; illustrations by Brett Helquist
- Series of unfortunate events, The end, by Lemony Snicket ; illustrations by Brett Helquist
- Howie Monroe and the doghouse of doom, James Howe ; illustrated by Brett Helquist
- The carnivorous carnival, by Lemony Snicket ; illustrations by Brett Helquist
- Bear's big breakfast, by Lynn Rowe Reed ; illustrated by Brett Helquist
- A Series of unfortunate events, The Slippery Slope, Lemony Snicket
- The Grimjinx rebellion, Brian Farrey ; illustrated by Brett Helquist
- The hostile hospital, by Lemony Snicket ; illustrations by Brett Helquist
- A series of Unfortunate Events, The penultimate peril, by Lemony Snicket ; illustrations by Brett Helquist
- Guitar genius, how Les Paul engineered the solid-body electric guitar and rocked the world, by Kim Tomsic ; illustrated by Brett Helquist
- More scary stories to tell in the dark, collected from folklore and retold by Alvin Schwartz ; illustrated by Brett Helquist
- Odd and the Frost Giants, Neil Gaiman ; illustrated by Brett Helquist
- Strangeville School is definitely not cursed, by Darcy Miller ; illustrated by Brett Helquist
- The hostile hospital, by Lemony Snicket ; illustrations by Brett Helquist
- Groundhog's day off, Robb Pearlman ; illustrated by Brett Helquist
- The league of seven, Alan Gratz ; illustrations by Brett Helquist
- The bad beginning, by Lemony Snicket ; illustrations by Brett Helquist
- Nadya Skylung and the cloudship rescue, Jeff Seymour ; illustrated by Brett Helquist
- Nadya Skylung and the masked kidnapper, Jeff Seymour ; illustrated by Brett Helquist
- The end, by Lemony Snicket ; illustrations by Brett Helquist
- The reptile room, by Lemony Snicket ; illustrations by Brett Helquist
- The wide window, by Lemony Snicket ; illustrations by Brett Helquist