Book excerpt: Although aimed at keen amateur photographers who wish to break into the professional market, the superb images and technical expertise offer something for all levels of skill and will also inspire those just becoming interested in photography and more established photographers who need to re-focus their photographic motivation. The book's primary goal is to draw the attention of readers to the absolute importance of light and how to make the best use of it, with an emphasis on being in the right place at the right time, anticipating fine light and ensuring that for the short duration that those qualities are present, they are successfully recorded to film or pixel. However, composition and technical expertise are also vitally important and Ian outlines the best field techniques for choosing the correct exposure, discusses depth of field, hyper-focal focusing, exposure bracketing and the use of appropriate filters.