This issue of Cardiac Electrophysiology Clinics, Guest Edited by Drs. Suneet Mittal and David Slotwiner, is dedicated to Device-Based Arrhythmia Monitoring. This is one of four issues selected each year by the series Consulting Editors, Ranjan K. Thakur and Andrea Natale. Topics include, but are not limited to: Implantable loop recorders, Permanent pacemakers and implantable cardioverter defibrillators, Heart failure monitoring, Remote programming and cybersecurity concerns, Models for remote monitoring, Data management and integration with EMR systems, Screening for atrial fibrillation and The role of artificial intelligence in arrhythmia monitoring.