The recently published "Johns Hopkins Guide to Digital Media", weighing in at over five hundred pages, claims to be the first "systematic and comprehensive" reference work on digital media. However, the reader need only scan the table of contents with entries ranging from the expected, such as "Blogs," to the obscure such as "Searle's Chinese Rooms," to appreciate that it is neither systematic nor comprehensive. And, this is not necessarily a bad thing. For, The Guide does indeed accomplish what it sets out to do: provide readers with " a GPS and a map of the territory of digital media, so that they will be able to design their own journey through this vast field of discovery."