Tuutikki Tolonen is the author of several acclaimed children’s books, plays and academic articles. She teaches creative writing and has worked as an editor and reporter at Vinski, a Finnish literary magazine for children. For Monster Nanny she received the Arvid Lydecken award. Her inspiration for the Monster Nanny trilogy sparked during a family breakfast. “My son Leo, then six, said: ‘I heard on the radio yesterday that all moms have to go on vacation and monsters will take their places,” she says.
Her other bestselling series is the Agnes-series, of which the first book "Agnes and the Garden of Dreams" was in 2021 nominated for the Arvid Lydecken Award, received an honorable mention for the Runeberg Junior Award, and won the Luku Varkaus Award. Tolonen tells that the inspiration for Agnes comes for her interest for weird and inexpicable tales, ghost stories and mysteries: "I wanted to write book my daughter Aili, then nine, would like to read - not too long, not too scary, but very curious."