Kate E. Reynolds MDS, PGDC, PGDHE, BSc (Hons) SA, RGN is mother to two young people on the autism spectrum, one of whom has intellectual disabilities. She worked for the UK's National Health Service for 18 years, largely in HIV and sexual health. Kate has written 12 books, most published by Jessica Kingsley Publishers and almost all about aspects of relationships and sexuality. She works closely with parents and professionals, as a trainer, consultant and researcher. Kate speaks at conferences and briefed the All Party Parliamentary Group about sex education and disability.

Jonathon Powell lives in Brisbane, Australia and has a Diploma in Fine Art and Bachelor of Animation at Griffith University, Queensland. He has illustrated for the 'Sexuality and Safety with Tom & Ellie' six book series by Kate E. Reynolds, 'Can I tell you about PDA syndrome' by Ruth Fidler & Phil Christie, and 'Making Sense of Sex' by Sarah Attwood, all published by Jessica Kingsley Publishers. He provided artwork and animations for Family Planning Queensland (True) including an education annual 'Talking About It' and a CD-Rom package 'Puberty Plus'. Jonathon also illustrated 'What are Relationships?' by Kate E. Reynolds.