Computer program products and arrangements of creating and displaying bodies of parallel segmented text are discussed. The bodies of parallel text may be divided into matching segments. Embodiments include transformations, code, state machines or other logic to display in separate areas one or more segments of text from each body of text. The embodiment may involve emphasizing one segment of text from each body. The emphasized segments may match. The text from one of the bodies may include two or more segments. The embodiment may include receiving from a user a command to emphasize a different segment within the one body of text. The embodiment may involve presenting a second display of text in response to the command. The second display may include the different segment and matching segments in the other bodies of text. The different segment and the matching segments may be emphasized.