I can't resist to quote here this extract of the Armchair General review :
[INDENT]Graphics (20/20): BOA is literally a work of art. I’m not going to gush about how nice it looks; the screenshots speak for themselves. The game board resembles a mix between a high quality wargame and those beautiful maps that were in the classic American Heritage Illustrated books of the 1960’s. Everything occurs on the main map; there are no other screens to jump to battles or other events. Moving the mouse over a region will give all the information on the area needed by the player, and filters are useful to show control, supply, etc. Detailed information screens can be called up by clicking the hot buttons in the main window. It is very intuitive, and while I found myself using the filters often to track control or supply, I usually kept the main terrain map up simply because it was so attractive.[/INDENT]