How we represent the land to ourselves affects the ways in which we value and act upon it, according to landscape architect Corner (Univ. of Pennsylvania). His text accompanies the beautifully suggestive aerial photographs of MacLean (whose previous book was Look at the Land), which document the ways in which we impose shape and meaning on our landscape: Irrigated fields contrast sharply with the surrounding desert; old homesteads, now abandoned, anchored people in an undifferentiated and dangerous landscape--their isolation from one another reflecting American individualism; and wheat fields follow the rolling contours of the land. ""Revealed is the absurd and magnificent ingenuity of American people,"" Corner writes, ""a people enmeshed with yet remote from their land.