The study analyzed the differences in reading from various kinds of media (e-book, tablet PC, paper) in two sample groups, young and elderly adults. Each participant read various texts with different levels of complexity on an e-book reader (Kindle 3), on a tablet PC (iPad), and on paper. The reading behavior and the participants' corresponding neural processes were assessed by means of concurrent measures of eye movements (eye tracking) and electrophysiological brain activity (EEG). The criteria that were taken into account and analyzed were changes in the theta frequency band power, reading behavior, text comprehension, and information recall as well as the participants' preferences for the respective medium.