h.a. Hellyer is fellow at the Centre for Research in Ethnic Relations at Britain's University of Warwick.
Untrained artist h.a. Rey (né Hans Augusto Reyersbach) and his wife, photographer Margret (née Margarete Waldstein).
Anne Frank had her diary, and h.a. and Margret Rey had their inquisitive illustrated monkey.
To make the images print-ready, h.a. tediously redrew his watercolor images as color separations, layer by layer.