It is one of the more niche, under-appreciated technology books out there: "FoxTales: Behind the Scenes at Fox Software" by Kerry Nietz
FoxPro was originally FoxBase, a clone of dBase III, and in some respects better than dBase - IIRC, it could handle larger files, and worked better on a Novell Netware. FoxBase was however a console application - no windowing and no mouse.
Then in the beginning of 1989, they started working on "FireFox" - that's where the classic FoxPro GUI came to life. It was a big departure from dBase, and the name went thru multiple iterations before it became FoxPro. It was a runaway success. dBase never caught up - dBase IV tried catching up with FoxPro's GUI, but it was buggy, slow, and its lunch was being eaten by Nantucket's Clipper compiler.
It was fun times, but sadly the xBase dialect wars were superseded by the rise of Windows, and by the time people retooled into Delphi and Visual Basic, that went away and the web became the dominant application platform.