Book represented a number of clubs in the English football league system during a career which began in 1988 at Welton Rovers and concluded with a two-year stint as player-goalkeeping coach at Cheltenham Town between 2010 and 2012.
He moved on to Bath City and spent the initial part of the 1993–94 at Brighton without breaking into the first team though he did make a couple of appearances for Slough Town whilst on loan there.
A change of management saw him return to the non-league scene with Frome Town before a period at Lincoln City where he was an unused substitute in a couple of League Cup ties in the 1994–95 season.
[5] As a player, he joined Mangotsfield in the summer of 2006 and on 26 August scored the first goal of his career when a sliced free-kick from his own area managed to outfox the Rugby Town goalkeeper.
In June 2007, he departed the club by mutual consent after being told he didn't figure in the plans of newly appointed manager Frank Gregan.