Julie Andrews is feeling practically perfect in every way.
After all, the “Mary Poppins” star — who had her 90th birthday on Oct. 1 — is celebrating the start of the new decade by continuing one of her favorite activities: publishing books with her daughter Emma Walton Hamilton, whom she shares with ex-husband Tony Walton. The mother and daughter duo recently reissued their 2010 book “The Great American Mousical” about a troupe of theater-loving mice, this time illustrated by Walton, himself a famed costume and production designer.