Kurt Werth's papers focus on his work as an author and illustrator of children's books with an emphasis on the latter. The collection contains production material for over two dozen titles published between 1953 and 1974.

The collection contains three watercolor illustrations for a children's book illustrated by Larry Toschik.

This collection consists of manuscript materials related to eleven books written by Laura French.

The collection contains one box of materials related to the work of Laura Godwin, including editorial materials and work written by Godwin under the name Nola Buck.

This collection contains print and art production materials for over a dozen titles written and/or illustrated by Lauren Stringer.

The collection contains written production materials for four books written by Lee Kingman.

Lensey Namioka's papers focus on her work as an author of children's and young adult fiction. The collection contains production material titles published between 1989 and 2006.

The LeRoy Allen papers contain written production material from one book by Allen.

This collection contains manuscript material for one title written by Lesa Cline-Ransome.

The collection contains an illustrator's dummy for one picture book.

Collection contains typescripts, correspondence, and illustrative material for one picture book by Leslie Tryon.

Lewis S. Miner published several books from the 1940s to the 1960s including Mightier Than the Sword, Front Lines and Headlines: Story of Richard Harding Davis, and Pilot on the River. This collection includes many unpublished manuscripts, book reviews, royalty statements, agreements, correspondence, periodicals from the 1930s, and a few personal items such as a scrapbook and poster.

The Lilian Robertson Collection contains illustrative material for two children's books published in the late 1940s.

This collection consists of typescripts and material related to the creation of one children's book by Lillian Brady.

Collection includes typescripts and illustrations for children's books created by Lillian Hoban.

This collection consists of papers related to works written by Linda Crew.

Collection contains production materials for one title authored by Linda Keefe and three bound hand printed books.

This collection consists of manuscript materials related to publications written by Linda Sue Park between 1999 and 2013.

Collection contains typescripts and material for one children's book.

Lisa Desimini wrote My Beautiful Child, Policeman Lou and Policewoman Sue, and Trick or Treat, Smell My Feet! The collection includes correspondence, dummy photocopy, production material, typescripts, reviews, and unpublished corrected typescript photocopy.

Collection contains production material for children's books by Lisa Westberg Peters.

This collection consists of manuscript material related to children's books by Lisa Yee.

The collection contains written production material for three titles.

The collection contains art and production material for one children's book created by Goff.

The collection contains production material related to seven titles written by author Lois Duncan.

This collection contains graphic materials, research, and papers related to works illustrated and works written and illustrated by Lois Ehlert.

Lois F. Harvey's collection consists of papers and typescript for one children's book, Toyanuki's Rabbit.

Lois Lowry's papers focus on the genesis, process, revision and publication of her books for children and young adults.

Lorenz Graham's collection contains papers related to his publications for children, as well as correspondence and other materials.

This collection contains art production material for two picture books illustrated by Steve Johnson and Lou Fancher.