Bishop's Square was originally written by Bob Bishop in 1980 on the Apple II and this version was ported to the Atari by Mark Riley who also developed Maxwell's Demon.
Bishop's Square was a puzzle game that had you rearrange tiles to match back up to a an original puzzle. 3 pictures were included - cubes, desert, and deer. You can even save the puzzle in progress on a separate disk and apparently this version was also compatible with Micro-painter so you could create your own puzzles.
Maxwell's Demon is an educational game that demonstrates the laws of thermodynamics as determined by James Clerk Maxwell's theory. Even works with Datasoft's LE STICK.