The CYCLES community is intended for the exchange of information and ideas concerning CYCLES, meaning repeating phenomena, in anything and everything. That includes, but is not limited to astronomy, biology, climatology, commodities, cosmology, dendrochronology, economics, extinctions, finances, geology, history, meteorology, mathematics, medicine, music, paleontology, politics, prices, physics, social trends, stocks, weather and wars. Observations of the occurrence of cycles, mathematical analysis methods and theories concerning cycles are the subject of videos and discussions and information about conferences, lectures, books, software and other related matters may be disseminated. The emphasis is on an interdisciplinary approach. Cycles are a powerful means of discovering possible causal relationships between variables because the pattern of frequencies present is like a unique fingerprint.