<P>The study of what is collectively labeled "New Media"—the cultural and artistic practices made possible by digital technology—has become one of the most vibrant areas of scholarly activity and is rapidly turning into an established academic field, with many universities now offering it as a major. <I>The Johns Hopkins Guide to Digital Media</I> is the first comprehensive reference work to which teachers, students, and the curious can quickly turn for reliable information on the key terms and concepts of the field. </P><P>The contributors present entries on nearly 150 ideas, genres, and theoretical concepts that have allowed digital media to produce some of the most innovative intellectual, artistic, and social practices of our time. The result is an easy-to-consult reference for digital media scholars or anyone wishing to become familiar with this fast-developing field.</P>