High Latitudes is a selection of poetry written by Donald "Mack" Hassler and collected over a fifty-year period between 1966 and 2016. These poems provide a snapshot of various influences and periods in the author's life, as well as that of his family, as seen through his eyes. The title, High Latitudes, reflects on the theme of the traveler, voyager and explorer, both physically and intellectually through the pursuit of knowledge. The collection was selected and edited by his sons, Don & David Hassler, in honor of their father's 80th birthday, and they hope that the reader shares in the same sense of adventure and exploration when reading these poems that they feel as voyagers in this life.