Ha colaborado con
- Cameron Dunn — en Pearson Edexcel A-level Geography Book 1, Updated Fourth Edition
- David Holmes — en Pearson Edexcel A-level Geography Book 1, Updated Fourth Edition
- Kim Adams — en Pearson Edexcel A-level Geography Book 1, Updated Fourth Edition
- Michael Chiles — en Pearson Edexcel A-level Geography Book 1, Updated Fourth Edition
- Michael Witherick — en Pearson Edexcel A-level Geography Book 1, Updated Fourth Edition
- Sue Warn — en Pearson Edexcel A-level Geography Book 1, Updated Fourth Edition