Even in these days of unprecedented access to information, some are surprised to find that there are more than a few catechisms in Church history. In fact, Catholics are heirs to such a wealth of these texts that they defy precise enumeration, having been penned and promulgated throughout the last millennium by bishops and councils all around the world. Amid the renewal of catechetical methods called for in the 2020 Directory for Catechesis, scores of these priceless guidebooks of faith from the past are being remastered and republished for a contemporary audience, offering students, catechists, and religious seekers alike a unique glimpse into the abiding continuity of Catholic doctrine throughout time and space.