Pygmy Kitabu is based on the travels of Jean-Pierre Hallet through central Africa from 1948 through 1960 and his extensive interactions with the isolated Efé Pygmies of the Congo. It was first published during 1973, and was cowritten by Alex Pelle. Unlike his prior book, "Congo Kitabu", which chronicled his contacts and investigations into multiple groups in the Congo and nearby regions, "Pygmy Kitabu" is a detailed observational study primarily of the Efe Pygmies. Great detail and scientific observational method was used in the writing of the book.