A graphical user interface is configured to display information related to diagnosis and/or repair of various objects, such as automobiles. The GUI displays relevant reference information, of any type, next to procedure steps of a selected diagnostic or repair procedure. Advantageously, reference information from multiple sources may be automatically selected for display in the GUI according to a current task that is selected by the user. Accordingly, a technician viewing the GUI does not need to access any other reference information, valuable man hours are spared, and efficiency increases. In one embodiment, the layout and immediate availability of relevant reference information may also increase the learning capabilities of the viewing technician. Thus, the layout of information in the GUI as described herein may facilitate increased employee productivity and increased employee learning.