At the drop of a hat
McKinlay, Jenn, author.
New York : Berkley Prime Crime, 2015.

At the drop of a hat
McKinlay, Jenn, author.
[United States] : Tantor Audio, 2016.

Caps for sale
Slobodkina, Esphyr, 1908-2002, author.
[United States] : Weston Woods, 1988.

Se venden gorras
Slobodkina, Esphyr, 1908-2002.
[United States] : Live Oak Media, 2015.

The cat in the hat = : Le chat au chapeau
Geisel, Theodor Seuss, 1904-1991, author.
New York, NY : Random House Publishing Group, 1967.

Cat's hat
Harker, Jillian.
Columbus, OH : School Specialty Pub., 2009.

Copy cap murder
McKinlay, Jenn, author.
[United States] : Tantor Audio, 2016.

Death of a mad hatter
McKinlay, Jenn, author.
[United States] : Tantor Audio, 2015.

Ella, the elegant elephant
D'Amico, Carmela.
[United States] : Scholastic, 2006.

Fatal fascinator
McKinlay, Jenn, author.
[United States] : Tantor Media, Inc., 2023.

A good day for a hat
Fuller, T. Nat, author.
[United States] : Abrams, 2017.

The hat
Ungerer, Tomi, 1931-
[United States] : Weston Woods, 1982.

I had a favorite hat
Ashburn, Boni, author.
New York : Abrams Books for Young Readers, 2015.

I want my hat back
Klassen, Jon, author.
[United States] : Weston Woods, 2013.

Margaret & H.A. Rey's Curious George in follow that hat!
Charlesworth, Liza, author.
Boston : Houghton Mifflin Harcourt, [2018]

Old hat, new hat
Berenstain, Stan, 1923-2005.
New York : Random House, 1998.

The special delivery

New York : Random House, [2002]

There goes Turtle's hat
McKerley, Jennifer Guess.
[United States] : Capstone Press, 2013.

This is not my hat
Klassen, Jon, author.
[United States] : Weston Woods, 2014.

Very good hats
Straub, Emma, author.
New York : Rocky Pond Books, 2023.

Very good hats
Straub, Emma, author.
New York, New York : Listening Library, [2023]

Whose hat is it?
Gorbachev, Valeri.
[United States] : HarperCollins, 2012.