In / Know It All: Finding the Impossible Country / James Marsh tells of his evolution from a troubled childhood to a long career in Canadian publishing that culminated in the creation of The Canadian Encyclopedia - what one reviewer called "the intellectual equivalent of the building of the CPR." Through friendships, curiosity, the insights of a charismatic psychiatrist, his passion for books, and the intimate encounters with the authors he met, he championed a diverse and inclusive view of Canada, which was used to draw the great minds of an impossible nation together in a common national enterprise. While exploring how memory works and how we learn to think of ourselves, / Know It All / offers insights into the intricacies of Canadian identity, the profession of book editors, and is the most comprehensive first-hand story about the creation of The Canadian Encyclopedia.