Leader of the Sussex Colour Group and the Sussex Baby Lab in the School of Psychology at the University of Sussex, Professor Anna Franklin is a leading expert in the fields of Colour Psychology and Perceptual Development. Professor Franklin's research includes infant and child testing, eye-tracking, neuroimaging, and other diverse methods of testing.

BabyVision Which One? is based on Baby Science which finds that, from as young as 3-months old, babies often quickly look at the odd-one-out. The odd ones out in this book have been chosen so they are likely to jump out to young babies.