THERE are some wonderful GAA additions to the conventional genre of sports autobiographies this year, not least Donal Keenan's fine collaboration with Teddy McCarthy and Damian Lawlor's splendid effort with Lar Corbett.
But, looking slightly left field, one addition to the shelves worth delving into is 'Tactics not Passion' by Emmet Ryan.
The author, who writes on sport for the 'Action81' website, takes a cold, pathologist's eye to club and county games played through 2012, providing a remarkably lucid tactical appraisal of where modern Gaelic football is going.
He is particularly forensic on how Donegal's diverse passing game showed that defence is, above all, about "controlling the flow of the game."
For those enthralled by the summer fairground ride, this is an exploration of the hydraulics underneath.
A fascinating read.