Paris Hilton wrote Confessions of an Heiress because she felt the need to explain who she really is. In her book, she has created several rules on how to be and act like an heiress. She suggests that some of the most "important" socialites made up their lineages and that anyone who wants to become an heiress can do this as well. Paris also has several tips on beauty and fashion, and she explains how, as a model, fashion is a large part of her life. She discloses secret beauty flaws she has and how she successfully hides them.

Paris writes a length of the importance of her relationship with her sister, Nicky Hilton, saying that they grew up together and are best friends. Paris is very supportive of all of Nicky's endeavors. Paris also discusses other people who are important to her and names many famous friends, including Carmen Electra and Mark McGuire. She addresses the fact that she has so many friends around the world that she felt the need to have five separate birthday parties hosted in her honor just to accommodate all of these people. Paris often travels to exotic places and has several tips on how one can travel like an heiress. She also includes lists of both her most favorite places to travel and the destinations she enjoys the least.

Paris has many different jobs. She is a budding actress and has had several roles in television shows and movies, not to mention her own reality based television show, The Simple Life. When Fox approached her about starring in this show, she was skeptical at first but decided to take on the challenge. She, along with her best friend, Nicole Richie, have starred in three seasons of The Simple Life, and a fourth season is in the works. In addition to being an actress, Paris is also a fashion model and is currently working on releasing an album and her own "heiress" line of jewelry.

Paris also gives details on the qualities men should have if she is to consider dating them. She delivers tips on how an heiress should behave with a boyfriend and on how she should behave with an ex-boyfriend. Paris also includes a list of who she thinks are the "hottest" guys.

Paris shares several personal photographs taken of her. She critiques each picture and, based on her own faux pas, gives pointers on what to do and not do when posing for cameras.

In Confessions of an Heiress, Paris also provides a list of what she believes being a girl entitles her to do, including throwing fits and throwing things. She details her family lineage, going back to her great-grandfather, Conrad Hilton, the man who began the Hilton Empire. She tells of famous actresses, such as Zsa Zsa Gabor and Elizabeth Taylor, who were once married into the Hilton Family, and she describes her own life as a child growing up as a Hilton heir. Paris also talks of her precious pet, Tinkerbell, and what it is like to have small dog that she takes everywhere. Paris also humorously recounts what Tinkerbell might write in a diary, if able to.

Paris also discloses some of the things she likes to do in her private life. She tells of her own personal relaxation techniques, which include classical music and baths with many wonderful products. She analyzes her life and the different turns it has taken, saying that she is becoming more serious as she gets older, and gaining a deeper appreciation for her family and their great support of her in all situations. She looks forward to the future and the possibility of someday having her own children.