Colin Byrne’s golf guide puts a top caddy in your pocket

Byrne and friend Karl McCullagh have co-written
, a small but perfectly formed guide to strategy, aimed at maximising potential in amateur golfers.Produced at a size which can be comfortably taken out onto the course during a round and concise enough to be absorbed quickly and effectively, as all the best sporting lessons are learned, Byrne is passing on the sort of advice that helped Goosen win the US Open at Shinnecock Hills in 2004 and guided Irish rookie Gavin Moynihan to the biggest cheque of his fledgling pro career at the Irish Open in May.