Brittany Cavallaro is a New York Times bestselling author and a poet, fiction writer, and old school Sherlockian. She is renowned for her Charlotte Holmes novels from HarperCollins/Katherine Tegen Books, which include A Study in Charlotte, The Last of August, The Case for Jamie, and A Question of Holmes. In collaboration with Emily Henry, she authored Hello Girls and most recently co-wrote the young adult verse novel Sunrise Nights with Jeff Zentner.

She has also published poetry collections titled Girl-King and Unhistorical through the University of Akron Press. A recipient of a National Endowment for the Arts fellowship, Brittany holds a BA in literature from Middlebury College, an MFA in poetry from the University of Wisconsin-Madison, and a PhD in English literature from the University of Wisconsin-Milwaukee.

Currently, she teaches creative writing at the Interlochen Arts Academy in Michigan, where she resides with her husband, cats, and golden retriever.