books.google.com - Electronic flash not only brings light to a photograph, it can be an important artistic tool--if you’ve acquired the knowledge to use it creatively. To master those skills, digital photographers need only turn to this complete reference. Packed with inspirational photos, it takes the mystery out of...https://books.google.com/books/about/Mastering_Digital_Flash_Photography.html?id=j728wJySfyQC&utm_source=gb-gplus-shareMastering Digital Flash Photography