Annette Curtis Klause, born on June 20, 1953, in Bristol, England, is a distinguished English-American writer and librarian, renowned for her contributions to young adult fiction. Klause embarked on her literary journey at an early age, drawing inspiration from children's tales and the horror stories recounted by her father. This early fascination with storytelling led her to author her first horror narrative, The Blood Ridden Pool os Solen Goom, at the tender age of ten, a project she both illustrated and crafted a cover for.

Klause's literary tastes evolved over time, with The Chronicles of Narnia and the historical novels of Rosemary Sutcliff becoming her favored reads. At fourteen, after encountering her first vampire novel, The Shiny Narrow Grin by Jane Gaskell, her passion for the genre deepened. Her academic pursuits led her to the University of Maryland, College Park, where she earned degrees in English literature and library science. Klause's debut novel, The Silver Kiss, broke new ground in young adult literature, offering a blend of romance, horror, and introspection that was both enthralling and thought-provoking. Her bibliography also includes titles such as Alien Secrets, Blood and Chocolate (which was adapted into a film in 2007), and Freaks: Alive on the Inside.

In addition to her novels, Klause has penned several short stories and contributed articles to the School Library Journal from 1982 to 1994. Currently, she serves as a children's materials selector for Montgomery County Public Libraries in Montgomery County, Maryland, and resides in Hyattsville, Maryland, with her husband Mark and their cats. Klause's work continues to inspire and captivate readers, cementing her status as a pivotal figure in the realm of young adult fiction.