This document summarizes studies on Estonian peatlands and peat resources. It discusses how Estonia has over 1.5 million hectares of peatlands, covering about 10% of its territory. Approximately 40% are under protection, 30% have been assigned for peat production, and 30% are abandoned. Several peatlands are drained, posing sustainability challenges. The properties of Estonian peatlands were inventoried from 1959-1964, specifying botanical composition and peat quantities. New research is focusing on chemical components, trace elements, and use of abandoned peatlands. Sustainable management of peatlands relies on balancing peat production and protection while restoring bogs.