The Public Domain Encyclopedia (or PDE) is a book series dedicated to the Golden Age of comics that are, today, freely available to all. It is aimed at readers, writers and artists that are looking for reliable and verified information about characters, authors, businessmen and publishers. The 3rd volume of the PDE is dedicated to Centaur, one of the earliest and of the most controversial American comic book publishers (1936-1942). Centaur contributed to the success of the Golden Age of comics by creating several characters that, later on, became winning archetypes of the comicdom such as Amazing-Man (by Bill Everett), Dr. Occult (by Jerry Siegel and Joe Shuster) and the Clock, the missing link between the pulp and comic book heroes.The book includes three sections: an introduction collecting a timeline of Centaur Publications and Comic Corporation of America, the 2 sister publishing companies that formed the so called “Centaur Group”. A chapter dedicated to the hows and whys of Centaur bankruptcy and an article dedicated to the controversial relationship between Funnies Inc. (the studio that contributed to the creation of the Marvel Universe in the early Forties) and Centaur, in terms of creative support. Corrado Sesselego is a senior partner and founding member of Blue Monkey Studio, an Italian firm dedicated to edutainment, art, illustration, graphic design and new media. He currently acts as senior researcher and writer, marketing manager, and spokesperson. He has over 15 years of experience in the field of education, edutainment and social research with a special attention toward youth, having cooperated with Fondazione Iard and carried out national and international projects promoted by Invalsi (Istituto Nazionale per la Valutazione del Sistema Educativo di Istruzione e di Formazione) and under the Memorandum of Understanding between Italy, Poland, Romania and Malta of CIDE (Centro Nazionale di Informazione e Documentazione Europea). He developed "Progetto: Club DeA" in cooperation with the International Library for Children E. De Amicis, the Local Authority of Genoa, Hasbro Italia and Wizards of the Coast (Italian Branch) to promote young people's development through edutainment programs based on comics and role-playing games. Partner and Artistic Coordinator of Blue Monkey Studio, an Italian firm specializing in graphic design, illustration and publishing services. B.A. in Decoration, with a specialzation in illustration. Over 10 years of experience as an artist and Project Manager of cultural and artistic projects at National level. Artistic Coordinator of Progetto Club DeA (2004-2010), a PBL project carried out by the International Library for Children Edmondo De Amicis and the the City of Genova, in cooperation with Wizards of the Coast and Hasbro Italy, Editrice Giochi/Parker. Laura is also an expert in promoting on-the-job equal opportunities for artists and education/entertainment professionals by providing training in the management of intercultural processes and social equality. At International level she managed and cooperated to develop projects finaced by the European Commission Life-long Learning Programme (2008-2013).