Jeff Wignall‎,‎ former camera columnist for the New York Times and Technical Editor of Photo District News‎,‎ has written numerous best‎-selling books‎,‎ including The Joy of Digital Photography‎.‎ A frequent contributor to many photo magazines ‎(‎Popular Photography‎,‎ American Photo‎,‎ Outdoor Photographer and PC Photo Digital‎)‎‎,‎ Jeff shoots advertising and advertorial work for major clients including Sony‎,‎ Canon‎,‎ Nikon‎,‎ and Olympus‎;‎ thousands of his photos have been published in every print medium‎.‎ Michael Freeman‎,‎ professional photographer and best‎-selling author‎,‎ was born in England in 1945‎,‎ took a Masters in Geography at Brasenose College‎,‎ Oxford University‎,‎ and then worked in advertising in London for six years‎.‎ In 1971 he made the life‎-changing decision to travel up the Amazon with two secondhand cameras‎,‎ and when Time‎-Life used many of the pictures he came back with‎,‎ he embarked on a full‎-time photographic career‎.‎ Since then‎,‎ working for clients that include all the worl‎.‎‎.‎‎.‎