A dragon is a legendary creature, typically with serpentine or reptilian traits, that features in the myths of many cultures. There are two distinct cultural traditions of dragons: the European dragon, derived from European folk traditions and ultimately related to Greek and Middle Eastern mythologies, and the Chinese dragon, with counterparts in Japan (namely the Japanese dragon), Korea and other East Asian countries.

The two traditions may have evolved separately, but have influenced each other to a certain extent, particularly with the cross-cultural contact of recent centuries. The English word "dragon" derives from Greek, "dragon, serpent of huge size, water-snake".

There are many different kinds of dragons, such as the Amphiptere, Dragonet, Drake, Guivre, Hydra, Wyvern, and Wyvre. You can look up these different types of dragons throughout this book.