Jessica Greenwell grew up in Wolverhampton then studied English at Leeds University. She joined Usborne in 2008 and has since written lots of wipe-clean, sticker, colouring and noisy books. She lives in Oxfordshire with her husband and two young sons, and when she's not playing pirates or dinosaurs, she's writing books about them instead. Maddie Frost creates her illustrations by making handmade textured and patterned swatches with materials like watercolour paint, crayon, pencils, and even kitchen spices! She scans the swatches into Photoshop and digitally cuts the shapes she needs to make something. Her final images can consist of anywhere from fifty to five hundred pieces that are all layered together. Maddie lives in Arlington, Massachusetts, with her husband.