Operated by Library Foundation SD, a 501(c)(3) nonprofit whose Central Library shop grew from $153,000 to $300,000 in annual sales between fiscal 2022 and 2024, Library Shop Mission Hills opened in December 2025 inside the landmark 1961 Mission Hills Library building — vacant since 2019 — channeling every purchase into direct financial support for the San Diego Public Library system. Every dollar spent in the shop funds Library Foundation SD's programs for all 37 San Diego Public Library branches, including the Mission Hills-Hillcrest/Knox Branch Library — the modern replacement facility whose 2019 opening freed the historic 1961 building for this bookshop's December 2025 launch. The new-book inventory prioritizes San Diego authors, an LGBTQ+ author section honoring the shop's proximity to Hillcrest's historic gayborhood, a banned-books selection aligned with the foundation's anti-censorship platform, and gifts and crafts made by local artists. The 1961 historic building doubles as a community event venue hosting author talks, book clubs, and children's storytimes — a recurring draw on the same Mission Hills Washington Street corridor as Chateau Bel Age Boutique, where the same neighborhood regulars extend their Washington Street visits into local boutique fashion. Sales revenue from every book and gift purchase flows directly into Library Foundation SD's operations across all 37 San Diego Public Library branches — tying local fiction, children's titles, banned books, and artist gifts purchased in Mission Hills to the preservation of free public library access citywide.