Heidi Murkoff is the co-author of the best-selling series that began with What to Expect When You're Expecting. She has appeared as a parenting expert on national TV, including The Oprah Winfrey Show, Today, Good Morning America and 20/20. Laura Rader has illustrated many popular books for children, including A Book of Hugs, A Book of Friends, and A Book of Kisses, all by Dave Ross. She is also the author and illustrator of Who'll Pull Santa's Sleigh Tonight? and Santa's New Suit, which Publishers Weekly called, in a starred review, a "holiday outing [with] plenty of panache." Ms. Rader lives in Southern California.