Description: Marty loves her Converse trainers, playing football, hiding in her secret den and helping her dad with his DIY. But her sister Melissa loves Justin Bieber and all things pink, girly and pretty. The sisters can manage to live together, despite their occasional scraps but then Mum tells them they have to share a room. Author Biography: Jacqueline Wilson is one of Britain's bestselling authors, with 30 million books sold in the UK. She has been honoured with many prizes for her work, including the Guardian Children's Fiction Award and the Children's Book of the Year. She is the author most often borrowed from libraries over the last decade. Jacqueline is a former Children's Laureate, a professor of children's literature and in 2008 she was appointed a Dame for services to children's literacy. * 'A brilliant writer of wit and subtlety' THE TIMES * 'Hugely popular with seven to ten year olds: she should be prescribed for all cases of reading reluctance' INDEPENDENT ON SUNDAY * 'Has a rare gift for writing lightly and amusingly about emotional issues' BOOKSELLER.