Museums of the World covers in its 23rd edition about 55, 000 museums in 202 countries, listed alphabetically by country and place, and within places by name. A separate chapter records ca. 500 museum associations in 132 countries. A typical entry contains: name of the museum, address, phone, eMail address, URL, museum type, name of the director and museum staff, special collections. The eBookPLUS format assists complex searches.