Ronald Stoyan is Editor-in-Chief of Interstellarum and the proprietor of the independent German publisher Oculum-Verlag, which specialises in amateur astronomy books. He is the founding director of the German deep-sky organisation 'Fachgruppe Deep-Sky' and has authored or co-authored nine books on practical astronomy, including Atlas of the Messier Objects and The Cambridge Photographic Star Atlas.
Storm Dunlop is an experienced writer and lecturer on astronomy. He is author of Collins Night Sky (2011), a Fellow of the Royal Astronomical Society, and a past president of the British Astronomical Association.