About the authors:
All books in the Top Talk® Sound Adventure series have been written by Dr Sandra McMahon (PhD), a paediatric speech pathologist and her husband Chris McMahon, a published author of fiction. Sandra is also the CEO of Pop & Top, a new company focused on ways to optimise childhood development and extend potential, and home of the flagship Top Talk® Program – focused on speech and language development. Top Talk is directed towards ALL children from babies to early primary school.