Theresa Cheung was born into a family of psychics, astrologers and numerologists. She gave her first public numerology reading at the age of fourteen, and has been involved in the serious study of the psychic arts for over twenty years. As a former English secondary school teacher and health and fitness instructor Theresa has worked with many young adults. She contributes regularly to women's magazines, such as Red, She and Here's Health, and is the author of over twenty health, popular psychology, humour and New Age books including Dreams, Numerology and Face and Hand Reading in the Amazing You series.
Cressida Cowell is the author and the illustrator of the bestselling How to Train Your Dragon and The Wizards of Once book series, and the author of the Emily Brown picture books, illustrated by Neal Layton. How to Train Your Dragon has sold over 8 million books worldwide in 38 languages. It is also an award-winning DreamWorks film series, and a TV series shown on Netflix and CBBC. The first book in Cressida's new series, The Wizards of Once (also signed by DreamWorks), is a number one bestseller. Cressida is an ambassador for the National Literacy Trust and the Reading Agency, a Trustee of World Book Day and a founder patron of the Children's Media Foundation. She has won numerous prizes, including the Gold Award in the Nestle Children's Book Prize,the 2017 Ruth Rendell Award for Championing Literacy, the Hay Festival Medal for Fiction, and Philosophy Now magazine's 2015 Award for Contributions in the Fight Against Stupidity. She grew up in London and on a small, uninhabited island off the west coast of Scotland and she now lives in Hammersmith with her husband, three children and a dog called Pigeon.