Green is Certain is a 2-volume early-years autobiography by poet, artist/photographer, and neuroscientist Judith Lauter. This first volume tells the story from its beginnings in Austin TX through high-school graduation, and the second covers her undergraduate years at the University of Michigan. Both volumes are illustrated with photos and drawings, and feature a selection of early writings, focusing on poetry. Subsequent titles - Perturbations, Becquerel’s Plate, and The World, Again - will describe her years in grad school and beyond, and how her intellectual focus, rooted in the humanities, grew into a career in science, and a dedication to finding new approaches to understanding the neurobiology of human behavior.