Art of Organ Playing I-II is a comprehensive guide to mastering the technical, artistic, and expressive demands of the organ. Beginning with essential manual exercises - such as legato and articulation studies, chord techniques, and polyphonic playing - it progresses to advanced manual-pedal coordination, pedal technique, and interpretive approaches. The book also includes carefully curated exercises, historical ornamentation practices, and selected works by Bach and other masters, making it both a practical method and a rich musical resource. Based on decades of teaching experience, Zalánfy Aladár’s work remains an indispensable reference for students, teachers, and performers dedicated to building a solid and lasting organ technique.