Dr Caspar Addyman is a developmental psychologist and director of the Goldsmiths InfantLab. He is interested in how babies adapt to the world and how we support their learning. Over the course of his career, he has investigated early concept learning, the foundations of language, time perception and sleep, and of course, the importance of laughter and positive emotion in early life - research that culminated in Caspar's joyful and informative book, The Laughing Baby. Not only does Caspar write about babies, but he also writes for babies with his fabulous Babies Laugh books.

Born in Gdansk, Poland, Ania Simeone graduated in literature and moved to Sardinia, Italy, for ten years. She currently lives in the beautiful seaside town of Sopot in Poland, with her husband, daughter, and dog, Leo. Ania beautifully captures all the happy, curious and funny moments of everyday life. She works with traditional techniques, like coloured pencils and watercolours, as well as digital programs, carefully selecting colours to reflect the seasons and their light.