David Rennie is a late-blooming, self-taught photographer. He jokes that when he started out he thought ISO was a measurement for radioactive materials and shutter speed an indication of how fast your venetian blinds closed! Today he is an award-winning nature photographer and a passionate advocate for conserving our wilderness areas. As David says, 'It would be gut-wrenching if our children's children could only see what we can now through books like this and not out in nature.'