The "Encyclopedia of the Ibeji" is a new book, with contents and photos completely different from the "Catalogue of the Ibeji", the other volumes by Fausto Polo on the Ibeji. The "Catalogue of the Ibeji" guided to the identification of the place of provenance of the Ibeji using the carving details of the statuette. The "Encyclopedia of the Ibeji" guides to the identification of the place of provenance finding a photo of a Ibeji similar to yours among over 500 photos included in the book.