%0 Journal Article %T Julius and Julia: Mastering the art of the Schwarz lemma %A Harold P. Boas %J Mathematics %D 2010 %I arXiv %X This article discusses classical versions of the Schwarz lemma at the boundary of the unit disk in the complex plane. The exposition includes commentary on the history, the mathematics, and the applications. %U http://arxiv.org/abs/1001.0559v1