
Arsenic for Tea is a children's mystery novel by American-English author Robin Stevens. The story is written in the style of a casebook and follows the fictional schoolgirl Detective Society detectives, the Honourable Daisy Wells and Hazel Wong, as they try to find the murderer of a guest at Daisy's birthday party, Mr. Curtis. Arsenic for Tea was nominated for the 2016 Carnegie Medal awards, but did not make the longlist. The book is a sequel to Murder Most Unladylike and is the second book in the ‘Murder Most Unladylike’ series.

The Land of Stories is a series of children's fiction, adventure and fantasy books written by American author, actor and singer Chris Colfer. The first book, The Wishing Spell, was released on July 17, 2012. The sixth book was published in July 2017. During a live video chat, Colfer said that he is working on a prequel series which has now been published. The books are described by Colfer as a "modern-day fairy tale", following twins Alex and Conner Bailey as they fall from the real world into a world full of fairy tales they have only ever read about before and discovering there is more to this world than meets the eye.

Big Nate: Lives It Up is a 2015 book by Lincoln Peirce, and it is the successor to Big Nate: In the Zone. It is the seventh and penultimate book in the Big Nate novel series.

A Boy Named 68818 is a true-life account of Israel "Srulik" Stark in the Holocaust, his spiritual resistance, and rebuilding afterwards, written by his daughter, Miriam (Stark) Miller. Aimed for children aged 10-14 as well as adults, the book was published in 2015 and distributed by Feldheim Publishers. It was praised by several Jewish and Holocaust memorial organizations.

The Boy Who Knew Everything is the sequel to Victoria Forester's first book The Girl Who Could Fly. It was released on October 27, 2015.

Danger in the Darkest Hour was written by Mary Pope Osborne and illustrated by Sal Murdocca and published by Random House in 2015. The book is dedicated to Osborne's father, Colonel William P. Pope, who fought in the Second World War. It is the first Super Edition of the Magic Tree House Series.

Finding Winnie: The True Story of the World's Most Famous Bear is a 2015 children's book written by Canadian author Lindsay Mattick and illustrated by Sophie Blackall. The non-fiction book is framed as a story Mattick is telling to her son. Her great-grandfather, Harry Colebourn bought a bear on his way to fight in World War I, donating the bear to a zoo where it became the inspiration for the character of Winnie-the-Pooh. Finding Winnie was thoroughly researched by both Blackall and Mattick. The book's writing and illustrations well reviewed and it won the 2016 Caldecott Medal.

Footer Davis Probably Is Crazy (ISBN 978-1-481-42276-5) is a book written by Susan Vaught and published by Simon & Schuster on 3 March 2015 which later went on to win the Edgar Award for Best Juvenile in 2016.

From the Notebooks of a Middle School Princess is a 2015 children's novel written and illustrated by Meg Cabot and a spinoff of the author's young adult fiction series, The Princess Diaries. The book was released on May 19, 2015 through Feiwel & Friends and follows Olivia, a bi-racial 12-year-old who finds out she is the half-sister of Princess Mia Thermopolis.

The Gender Fairy is a 2015 picture book written by Jo Hirst and illustrated by Libby Wirt.

George is a children's novel about a young transgender girl written by American author Alex Gino. The novel tells the story of Melissa, a fourth-grade girl who is struggling to be herself to the rest of the world. The rest of the world sees Melissa as George, a boy. Melissa uses the class play Charlotte's Web to show her mom that she is a girl by switching roles with her best friend, and playing the part of Charlotte.

Goodbye Stranger is a 2015 young adult realistic fiction novel written by Rebecca Stead that details the social and personal challenges facing modern middle school students.

Grandmother Fish: A Child's First Book of Evolution was written by Jonathan Tweet. The book explains Charles Darwin's theory of common descent and its target audience is 3–5-year-olds. It uses a call-and-response interaction between speaker and listener, where the child is asked to mimic the behavior of various animals from our evolutionary past. The book is illustrated by Karen Lewis with colored artwork. Grandmother Fish takes children and adults through the history of life on our planet and explains how we are connected.

The Grasshopper & the Ants, by Jerry Pinkney, is a 2015 adaptation of the classic Aesop fable where a grasshopper relaxes through Spring, Summer, and Autumn, while a colony of ants work at gathering food for the Winter, but although initially refusing the grasshopper's request for help, they relent and invite him in to share.

Juna's Jar is a children's picture book written by Jane Bahk and with illustrations by Felicia Hoshino. The book tells the story of Juna, a little girl whose best friend left to live somewhere else. Through her imagination, she finds solitude by filling an old kimchi jar with a variety of things.

Katy (2015) is a children's book by author Jacqueline Wilson. It is a modern-day retelling of What Katy Did. The author loved the book What Katy Did, so when she got older and became a mother, she used to read the book to her daughter, but she noticed the moral was not appropriate for today's generation. So she rewrote the whole book, in a modern way.

Ketzel, the Cat who Composed is a children's picture book by Lesléa Newman. Based on a true story, it is about the friendship between Moshe Cotel and a kitten, Ketzel, who composes a musical piece that Cotel enters into a music competition and receives a special mention.

The School for Good and Evil is a fantasy fairytale hexalogy of books by Soman Chainani. The first novel in the series was published on May 12, 2013. The series is set in a fictional widespread location known as the Endless Woods. The original trilogy follows the adventures of best friends Sophie and Agatha at the School for Good and Evil, an enchanted institution where children are trained to become fairytale heroes or villains, respectively. The second trilogy follows Agatha and her true love King Tedros ascending to the role of Queen and King of the legendary kingdom, Camelot, and Sophie re-forming Evil into a new image. The final book in the series was released on June 2, 2020.

Last Stop on Market Street is a 2015 children's book written by American author Matt de la Peña and illustrated by Christian Robinson, which won the 2016 Newbery Medal, a Coretta Scott King Illustrator Honor, and a Caldecott Honor. The book follows a young boy named CJ as he learns to appreciate the beauty in everyday things during a bus ride.

Library of Souls is a sequel to 2014 novel Hollow City written by Ransom Riggs and third book in the series of Miss Peregrine's Home for Peculiar Children. It was released on September 22, 2015 by Quirk Books.

The Lie Tree is the seventh children's fantasy novel by Frances Hardinge, published in 2015 by Macmillan Publishers. The book won the 2015 Costa Book of the Year.

Mango, Abuela, and Me is a 2015 children's book written by Meg Medina and illustrated by Angela Dominguez. It was first published on August 25, 2015 through Candlewick Press and was a 2016 Belpré Honor Book. While writing the book Medina drew upon her experiences growing up with her grandmother Abuela Bena.

Mel Foster and the Demon Butler is a gothic children's novel by Julia Golding.. Golding also writes under the pen names of Joss Stirling and Eve Edwards. Mel Foster and the Demon Butler has been published by Egmont Publishing in August 2015. The publishing deal was announced in January 2015. The novel is the first book in an adventure series. The next book, Mel Foster and the Time Machine, was published in April 2016.

Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War is a 2015 non-fiction book, aimed for young adolescent readers, written by Steve Sheinkin and published through Roaring Brook Press. The multi-award winning book tells the story of Daniel Ellsberg's role in the Vietnam War and the Pentagon Papers.

The Mystery of the Clockwork Sparrow is the debut novel of British children's author Katherine Woodfine, initially published by Egmont Publishing in June 2015. The novel is the first book in The Sinclair's Mysteries, a quartet of mystery-adventure novels set in Edwardian England.The Mystery of the Clockwork Sparrow was Waterstones Children's Book of the Month in June 2015. The novel was inspired by Katherine's love of classic children's adventure stories, E. Nesbit, Frances Hodgson Burnett, Enid Blyton and Nancy Drew.

One is a 2015 children's novel by the author Sarah Crossan. The book was published by Bloomsbury Publishing on 27 August 2015.

Orbiting Jupiter is a 2015 young adult fiction novel written by Gary D. Schmidt, the author of Lizzie Bright and the Buckminster Boy and Okay for Now. The novel is set in rural Eastham, Maine, during the fall and winter of an unnamed modern-day school year.

Princess Academy: The Forgotten Sisters is a fantasy novel written by Shannon Hale and published by Bloomsbury USA in 2015. It is the third and final installment of the Princess Academy series, preceded by Princess Academy: Palace of Stone. It follows the story of Miri Larendaughter, who becomes a tutor to three royal cousins in a new princess academy in the swampy land of Lesser Alva.

The Princess and the Pony is a 2015 children's picture book illustrated by Kate Beaton. She won the Children's Book Award in 2016 for the Princess and the Pony. She said that the book was inspired by her nephew. It is her first book written for children.

Ratscalibur is a 2015 children's novel written by Josh Lieb and illustrated by Tom Lintern. It is a humorous fantasy set in New York City and loosely based on the Arthurian legends. It is the first book in the Chronicles of the Low Realm series.

The Stone Warriors is the fourth and second-to-last book in the TombQuest series. It was written by Michael Northrop. It was originally published on December 29, 2015.

The Story of Diva and Flea is a 2015 children's book written by Mo Willems and illustrated by Tony DiTerlizzi.

The Sword of Summer is a young-adult fantasy novel based on Norse mythology written by American author Rick Riordan. It was published on October 6, 2015, by Disney Hyperion, and is the first novel in the Magnus Chase and the Gods of Asgard series.

Theodore Boone: The Fugitive is the fifth book in the Theodore Boone series written by John Grisham. It was released May 12, 2015.

The Thing About Jellyfish is a 2015 children's novel written by Ali Benjamin, her fiction debut.

Treasure Hunters: Secret of the Forbidden City is a young adult children's literature adventure fiction book written by James Patterson with Chris Grabenstein. It is the third book in the Treasure Hunters series and the sequel to Treasure Hunters: Danger Down the Nile. It was published in 2015.

Waiting is a children's picture book by American author and illustrator Kevin Henkes. Waiting was published by Harper Collins in 2015.

The War that Saved My Life, written by Kimberly Brubaker Bradley, is a 2015 children’s historical novel published by Dial Books for Young Readers. The War that Saved My Life was a Newbery Honor Book in 2016 and was Bradley’s first Newbery Honor Book.

What Pet Should I Get? is a Dr. Seuss children's book, posthumously published in 2015. Believed to have been written between 1958 and 1962, the book chronicles the adventures of Jay and Kay from Seuss' One Fish, Two Fish, Red Fish, Blue Fish in their attempts to buy a pet.