books Subgroups Theorie und Praxis des Goldschmied nameTitlepageitem No.Special bookTheory and Practice of Goldsmithing600500200 Gems and jewellery stones nameTitlepageitem No.bookThe hole world of precious stones320500206 Erfolgsfaktoren im Handel Tips and explanations for the active sale nameTitlepageitem No.Special bookSuccess factors in retail100500107 Fachwissen für Fachgeschäfte Basic knowledge for jewellery sales nameTitlepageitem No.Special bookSpecialist knowledge for specialist shops124500211 Handbuch der Warenkunde Training in the watch and jewellery industry nameTitlepageitem No.Special bookHandbook of product knowledge38500204