The first three titles in this bestselling series.

It's a Twin Thing
Mary-Kate and Ashley may be sisters, but they are totally different people. But they do agree on one thing: they're way too old for a babysitter! Too bad their dad doesn't see it that way. Now they need a plan - a plan to ban all babysitters forever!

How to Flunk your First Date
Ashley thinks Mary-Kate's new maths tutor is totally cute. But Mary-Kate only cares about the fact that she's missing her basketball practce. So they decide to swap places...

The Sleepover Secret
Ashley's having a sleepover, and has invited the most popular girl at school! But all attention switches to Mary-Kate when she tells everyone a secret she's never even told Ashley...

This book features in the following series: 2 Of a Kind, Mary Kate And Ashley .

This book was published 2002 by HarperCollins Publishers .

Mary-Kate and Ashley Olsen have been huge international stars since the age of nine months, when they shared the role of Michelle in the sit-com `Full House'. With videos, video games, CDs, dolls, books, a fashion line and a magazine under their belts, their market impact is phenomenal.