Andrew Kambites is a leading English bridge teacher and author and lives in Stroud, Gloucestershire. Ron Klinger is a leading international bridge teacher and has represented Australia in world championships since 1976. An Australian Grand Master and a World Bridge Federation International Master, he has written over fifty books, some of which have been translated into Bulgarian, Chinese, Danish, French, Hebrew and Icelandic. He has created many new bridge ideas and devised a number of conventions. He lives in NSW, Australia.