William Neill, a resident of the Yosemite National Park area since 1977, is a landscape photographer concerned with conveying the deep, spiritual beauty he sees and feels in Nature. Neill's award-winning photography has been widely published in books, magazines, calendars, posters, and his limited-edition prints have been collected and exhibited in museums and galleries nationally. Neill received a BA degree in Environmental Conservation at the University of Colorado. In 1995, Neill received the Sierra Club's Ansel Adams Award for conservation photography.

Neill's assignment and published credits include National Geographic, Smithsonian, Natural History, National Wildlife, Conde Nast Traveler, Gentlemen's Quarterly, Travel and Leisure, Sunset, and Outside magazines. Also, he writes a regular column, On Landscape, for Outdoor Photographer magazine. His corporate clients have included Sony Japan, Bayer Corporation, Canon USA, Nike, Nikon, The Nature Company, Hewlett Packard, 3M, Sony Music/Classical, UBS Global Asset Management.

His work was chosen to illustrate two special edition books published by The Nature Company, Rachel Carson's The Sense of Wonder and John Fowles's The Tree. His photographs were also published in a three-book series on the art and science of natural process in collaboration with the Exploratorium Museum of San Francisco: By Nature's Design, The Color of Nature, and Traces of Time. A portfolio of his Yosemite photographs has been published entitled Yosemite: The Promise of Wildness. A monograph of his landscape photography entitled Landscapes Of The Spirit relates his beliefs in the healing power of nature. Neill’s most recent book, William Neill–Photographer, A Retrospective is a collection of his photographs taken over the past forty years. His latest book is Light on the Landscape, a collection of essays and images from his On Landscape for Outdoor Photographer magazine.