David Sang is an experienced teacher and author. He has co-authored over 100 books for secondary schools in the Caribbean, the UK and for international qualifications.
Byron Dawson is a former Assistant Head Teacher and has written over 20 science textbooks.
Lawrie Ryan has twenty years of experience at teaching science at secondary schools, including experience of working as a Science Adviser. He now works as a full-time science author, editor and consultant.