Katie Ridder is a New York City based interior designer. Her firm has been included in the top 100 lists of House Beautiful and Elle Decor. Her line of wallpaper and fabric is carried by Holland & Sherry.

Katie’s first book, Rooms, was published in 2011. A House in the Country, co-authored with her husband, Peter Pennoyer, features the couple’s house and garden in Millbrook, New York. Katie’s latest book, More Rooms, was published in September 2020.