It is the only self study training guide by an umpire for the players .
Former England skipper Mike Brearley OBE has contributed the preface while the then Sri Lanka 's cricket coach , Davenall Whatmore , the Foreword .
Sri Lanka is the only self study training guide by an umpire for the players .
Former England skipper Mike Brearley OBE has contributed the preface while the then Sri Lanka 's cricket coach , Davenall Whatmore , the Foreword .