In her new book, trainer-to-the stars Kathy Kaehler reveals how to get Jennifer Aniston’s arms, Cindy Crawford’s abs, Michelle Pfeiffer’s legs, Claudia Schiffer’s bottom. The guide How to Get a Hollywood Body in Just 30 Minutes a Day, which came out today, discloses the exercises that have helped the author’s famous clients get in shape.

“Celebrities are not all that different from everyday people,” Kaehler told PageSix. “They are all busy people, they have families to take care of and things to do. They work hard to look as great as they do.

“They do have the additional motivation of appearing in front of cameras every day, so they have to look their best, but still they have to stay dedicated and focused, just like anyone else.”

Since landing a job at a Santa Barbara spa opened by Jane Fonda in 1987, Kaehler has worked with dozens of stars including Schiffer, Barrymore, Aniston, Crawford, Julia Roberts, Melanie Griffith, Candice Bergen and Lisa Kudrow. She also hosts a regular fitness segment on NBC’s Today show and is a spokeswoman for several fitness groups.