Ha colaborado con
- Amy O'Brien — en Maths Progress International Year 7 Student Book
- Andrew Edmondson — en Maths Progress International Year 7 Student Book
- Angela Wheeler — en Maths Progress International Year 8 Student Book
- Bobbie Johns — en Maths Progress International Year 7 Student Book
- Catherine Murphy — en Maths Progress International Year 7 Student Book
- Greg Byrd — en Maths Progress International Year 7 Student Book
- Gwenllian Burns — en Maths Progress International Year 7 Student Book
- Harry Smith — en Maths Progress International Year 8 Student Book
- Katherine Pate — en Maths Progress International Year 7 Student Book
- Keith Gallick — en Maths Progress International Year 7 Student Book
- Keith Pledger — en Maths Progress International Year 7 Student Book
- Lynn Byrd — en Maths Progress International Year 7 Student Book
- Mary Pardoe — en Maths Progress International Year 8 Student Book
- Naomi Norman — en Maths Progress International Year 7 Student Book
- Sharon Bolger — en Maths Progress International Year 7 Student Book
- Sophie Goldie — en Maths Progress International Year 7 Student Book
- Su Nicholson — en Maths Progress International Year 9 Student Book