An ebook is represented as a plurality of ebook pages associated with a plurality of segments. A summary view command is received, the summary view command requesting a particular type of summary view of a plurality of available summary views. One or more ebook pages are identified, for a summary view based in part on the requested type of summary view, and page thumbnails are generated for each of the identified one or more ebook pages. The generated page thumbnails are grouped by segment, using the plurality of segments. A summary view graphical user interface (GUI) is generated for the requested type of summary view using the grouped page thumbnails, the summary view GUI vertically listing one or more segments, of the plurality of segments, and horizontally listing page thumbnails associated with the one or more segments, and the summary view GUI is displayed.