Written for professional astrologers and advanced students, this book is a practical summary of relationship analysis techniques used to compare and contrast nativities for their compatibility or antagonism. Case study birth charts, tables, and a consultation preparation worksheet are included. This treatise explains synastry, house overlays, composite and Davison charts, configurations and midpoints. Analysing relationships moving through time, identifying partners who activate our shadow, finding past life connections, using antiscia synastry, and electing wedding charts are covered.