7 books - Two Of A Kind (It's A Twin Thing - How To Flunk Your First Date - The Sleep-Over Secet - To Snoop Or Not To Snoop? - My Sister The Super-Model - Let's Party! - Bye-Bye Boy-Friend) Mary-Kate & Ashley Olsen

6 Books - Full House - Sisters Series & Club Stephanie (Two On The Town - How To Hide A Horse - Problems In Paradise - And The Winner Is - One Boss Too Many & Flamingoes Overboard) Mary-Kate & Ashley Olsen