London, Oct 30 (IANS): Pippa Middleton, sister-in-law of Prince William, will write a book on how to become the perfect party hostess.

The 28-year-old, who became a celebrity after her sister Kate's wedding to William, is reportedly in talks with a literary agent about a book that would be certain to become a lucrative bestseller, said the Daily Mail.

The book is believed to include tips on etiquette, what food to serve at a party and how to decorate a room.

Pippa reportedly also has had discussions with many publishing houses, including HarperCollins.

Experts believe the book could become an international success, and might make more than one million pounds from royalties and spin-off projects.

The book will also feature a section on children's parties, inspired by a blog edited by Pippa, titled "The Party Times".

In one entry on her blog, Pippa writes: "The key to creating a wonderful party lies not in spending vast amounts but in planning - from choice of venue, entertainer and party theme to the selection of food, decorations and the birthday cake."