Rabbi Cohen's works of practical halachah have earned him a following in the thousands. He has the exceptional ability to clarify the underlying principles of the halachah, so that the reader understands how they are applied to new situations and modern appliances. Included are the rulings of such authorities as Rabbi Moshe Feinstein and Rabbi Shlomo Zalman Auerbach, with whom he discussed many of the topics he treats in his books. Here, he presents the laws of Yom Tov in his inimitably clear and authoritative manner.