Jamie Heaslip is one of the most decorated players in the history of Irish rugby. Over the course of a 13-year career, during which time he amassed 229 appearances for Leinster and 100 international caps, his name became synonymous with both the Irish number 8 jersey and the values that have propelled the growth of professional rugby in Ireland: diligence, professionalism and an unwavering commitment to self-improvement.

Here, in a frank and stirring account of his years on rugby's frontline, Heaslip recalls the events, wisdom and personalities that helped craft his winning mindset and vault Ireland to the summit of world rugby. At once an inspiring personal memoir and insider's account of Ireland's transformation from amateur backwater to professional powerhouse, All In is an inspiring meditation on sport, leadership and what it takes to succeed in the harshest of environments.