Three currently that appeal.

Improbable Eden - The Dry Valleys of Antactica ... Craig Potton

New Zealand Photographs ... Scott Freeman
One of the finest colour landscape books I've seen. Let alone on New Zealand, which generally seem to have a disproportionately high number of images of sheep in fields, bungy jumpers in action or maori doing the tourist dance.

Rakiura: The Wilderness of Stewart Island … Rob Brown
Good wilderness photos.