"If you like to explore the nooks and crannies of the Canada-US border, if you know the idiosyncrasies of more than four border crossings (the Ambassador Bridge and the Peace Bridge don't count), and if you think that the National Film Board's Between Friends/Entre Amis (1976) is one of the great coffee-table books (and cultural statements) of all time, then Imaginary Line: Life on an Unfinished Border deserves a place on your nightstand." — The Globe and Mail
"By highlighting what makes this part of the world unique, Poitras brings alive the quirks of communities whose cross-border heritage defies narratives of identity in both Canada and the United States." — Canadian Geographic
"A very impressive volume. Not an easy subject to tackle but wonderfully researched and so very revealing. Canada-U.S. relations at the regional level have rarely been so expertly explored." — Lawrence Martin