Angular unconformity: a discordant surface of contact between the deposits of two episodes of sedimentation in which the older, underlying strata have undergone folding, uplift, and erosion before the deposition of the younger sediments, so that the younger strata truncate the older.
— Michael Allaby, ed., A Dictionary of Earth Sciences, 3rd ed. (Oxford: Oxford University Press, 2008)

Angular Unconformity shows us a life's work in cross-section, a restless and humane intelligence, ever searching, ever shifting, finding meaning in our blink-of-an-eye existence against a backdrop of geological time unimaginable in its scale.

In this volume, the first comprehensive collection of Don McKay's poetry, this pre-eminent Canadian poet displays his gift for thinking through metaphor, channelling a profound philosophical discourse through plain language and striking imagery. In his poetry, disciplined attention and contemplation break through the commonplace and illuminate an ecological understanding of the world as it is.

Don McKay has published numerous books of poetry, including Birding, or desire (1983), Night Field (1991), Apparatus (1997), Another Gravity (2000), Strike/Slip (2006), The Muskwa Assemblage (2008), and Paradoxides (2012). He won the Griffin Poetry Prize and the Dorothy Livesay Poetry Prize in 2007, two Governor General's Awards for Poetry (in 1991 and 2000), a National Magazine Award in 1991, the Canadian Authors Association Literary Award for Poetry (in 1983 and 2013), and the E.J. Pratt Poetry Award in 2013. His books have also appeared on the shortlists for the Governor General's Award for Non-fiction (in 2002), the Governor General's Award for Poetry (in 1983 and 1997), and the Griffin Poetry Prize (in 2001 and 2005). He was named to the Order of Canada in 2009

McKay is also a respected editor, teacher, and scholar. He has taught at the University of Western Ontario, the University of New Brunswick, the Banff Centre for the Arts, and the Sage Hill Writing Experience. He has served as editor and co-publisher of Brick Books since 1975, and from 1991 to 1996, he edited The Fiddlehead. He presently lives in St. John's, Newfoundland.

Don McKay's profile page

"This book is as compassionate as it is essential. Essential at the very least because it collects poetry that has been out of print and thus difficult to access for readers, teachers, and students. Further, this book of collected poems is essential because McKay has been a significant voice in Canadian poetry for the past three decades."

<i>Canadian Literature</i>