John Jackman and Wendy Wren are established, successful authors in education and bring to the project a wealth of expertise and experience. John is one of Collins' Primary authors. A former primary schoolteacher he has written the successful Collins Primary Comprehension and consulted on Collins Primary Grammar and Punctuation. Wendy, a former school teacher and freelance editor, is co-author of a number of publications, notably Nelson English which she co-wrote with John.