This chapter, by way of introduction, explores the life and work of Badius, drawing on judgements by his contemporaries and posterity. It introduces Badius via perspectives on the various roles he played throughout his career in the learned culture of the Renaissance: poet, schoolmaster, commentator, editor, scholar-printer. His biography is presented in the context of the groups and networks with which he identified, both secular humanist and religious, in the Low Countries, Italy, Germany, England and France. Educated by the Ghent Common Life Brethren, in the early part of his career he worked in Lyon for the press of Johann Trechsel, and belonged to a group of northern European humanists who circulated and published devotional poetry. He became known as an editor, grammarian and writer of commentaries, and established his own press in 1503 in Paris, where he associated with the best known humanist scholars of the day: Robert Gaguin, Lefèvre d’Etaples, Guillaume Budé, Erasmus.