When fleeing the TSBD, Oswald boarded a bus going back toward that building but got off after only two blocks. This should be a Red Flag to everyone that he changed his escape plans. To learn where he was headed, we need to know what his original plans were. The Final Truth describes his escape path step-by-step and why his goal was the Lancaster bus stop at Ewing and Jefferson.
There are several original maps in The Final Truth, each created by examining and deciphering blurry 1963 bus schedules literally street by street.
The Final Truth: Solving the Mystery of the JFK Assassination