Honor Girl, Thrash's first book, was published by Candlewick Press in 2015.[1] The book describes her early life as a teenager coming out as a lesbian while attending conservative summer camp.[2][3][4] It received strongly favorable reviews[5] and was named a finalist for the 2016 Los Angeles Times Book Prize in the Graphic Novel/Comics category.[6] Her follow-up memoir, Lost Soul Be At Peace, published in 2018, explores a period of teen depression and her relationships with her family, notably her father, a federal judge.[7]
Thrash has also written two books in a mystery series for young adults. The first book called Strange Truth (formerly We Know It Was You)[8] was published in 2016 by the Simon Pulse imprint of Simon & Schuster.[9][10] The sequel, Strange Lies, was published in October 2017.[11]
Harper Perennial published Thrash's adult debut Rainbow Black on March 19, 2024.[12] The novel was described by The Washington Post as "Part mystery, part unsparing social commentary and part queer love story, Lacey’s personal history reads a little like Demon Copperhead’s — if he were a lesbian in New Hampshire."[13] It is a finalist in the fiction category for the 2024 New England Book Awards.[14]
Thrash currently lives in New Hampshire.[15] She was a frequent contributor to Rookie, a (now defunct) online magazine for teenage girls.[16]