Mychal Threets is an American librarian. Based in Fairfield, California, he is known for his viral social media videos that feature book recommendations, library services, and affirming messages.

The library where he worked as a children's librarian, Fairfield Civic Center Library, a branch of the Solano County Library in Solano County, California, is the same library he grew up patronizing. In 2013, Threets began working there at age 23, shelving books, and worked his way to becoming supervising librarian of his branch in January 2023. At the end of February 2024, Threets announced he would be resigning from Fairfield Library to focus on his mental health.

In February 2024, Threets announced he would be partnering with PBS to be their 'resident librarian,' a position he confirmed he would be keeping following his resignation from his job in Fairfield.

Threets has stated that he wants viewers to see the library as a positive and inviting place.

Threets' videos share book recommendations, interactions he has with patrons, services available at the library, and mental health-related messages. He is known for the catchphrases "you belong" and "unhinged library joy". Threets is also known for his afro and tattoos, which include cartoon character Arthur Read's library card and a Where the Wild Things Are tattoo on his arm. His viewers have compared him to Mister Rogers and LeVar Burton when he hosted Reading Rainbow.

He first began posting his stories to Facebook, but began posting videos to TikTok and Instagram in 2020 after the onset of the COVID-19 pandemic. In March 2023, his first viral TikTok video shared his experience having a child library patron ask about his gender.

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