I was gathering material to do a class on Revelations. Many of the old scholars wrote books on the subject and most of these books contained charts and graphs representing their view of Revelation. While many of these can be obtained by ordering heavy paper copies non are offered in format suitable for inclusion in a power point presentation.
I would like to suggest the Logos investigates publishing Dake, Larkins and others works and to include their charts in graphs in high resolution format suitable to enlargement or powerpoint presentations.
Ed