Kingdom of Threads is an online shop creating officially licensed merchandise for book, gaming, and other fandom communities. It brings favorite fictional worlds into everyday life through designs inspired by series and authors including A Court of Thorns and Roses, Fourth Wing, Dungeon Crawler Carl, Red Queen, Shadowhunters, Ninth House, and House in the Cerulean Sea. Shoppers can browse by fandom, author, collection, or product, making it easy to find items tied to the stories they love.

The brand’s range includes keepsake puzzles, stickers, bookmarks, enamel and button pins, book sleeves, keychains, bag charms, apparel, gift sets, washi tape, stationery, and home goods. Collections cater to book lovers and gamers, alongside themed selections such as My Book Nook, Pride, and gifts under $30. Kingdom of Threads also features new arrivals, bestsellers, and curated fandom collections, with merchandise suited to personal collections and gifting. Its online store shares customer reviews and highlights select products, including licensed puzzle designs, pins, caps, and bookmarks.