I have been writing information books for children for many years and have written nearly 300 books (I've lost count). I write about extreme weather, forensic science, animals and anything I can research - I enjoy finding out and writing about new things. I also visit schools to talk to children about writing and run creative science writing workshops. When I'm not writing, I listen to a range of music, which includes some jazz, Mozart and Mahler, and enjoy playing tennis and walking. My favourite books include Middlemarch by George Eliot and A Pale View of Hills by Kazuo Ishiguro.

What is asthma? History of asthma Increase in asthma Who has asthma? Healthy lungs What triggers asthma? Asthma and allergies Diagnosing asthma Preventing an attack Relieving an attack What to do during an attack Growing up with asthma Living with asthma Asthma and exercise Future for asthma Glossary Further information Index