This compendium of Group Puzzles types contains all currently defined puzzle types, grouped by size, and all signature puzzle types, listed alphabetically. Each puzzle type has a comprehensive entry providing a list of its general characteristics, a link to the help page that describes the group naming and numbering for each of its groups, and a complete table of all of the difficulty levels defined for the puzzle type complete with an example puzzle at each difficulty level. Most hyperlinks to puzzle type entries in the compendium use thumbnail images rather than simple text to indicate the type of puzzle for the entry. Simply click on any thumbnail to go to that puzzle type's entry. The exceptions to this rule are links to standard signature puzzles with the word across the top row. These puzzle entry links use a simple text hyperlink because there can be dozens of them for a particular puzzle type. Each entry also contains a cross listing with links to all signature and quilt puzzles (if there are any) that are related to the puzzle type described in the entry.