It provides setting information about the Spelljammer Campaign Setting. The product consists of two 96 page books, four poster maps, eleven cardstock sheets (showing deck plans), three sheets of cut out pieces for tactical battles and one sheet of cut out symbols for use with the [[crystal sphere]] map. It was published by TSR Inc. in 1989.<ref name="CoAS">{{Cite_Pub|AD&D Adventures in Space}} ''Concordance of Arcane Space''.</ref><ref name="LotV">{{Cite_Pub|AD&D Adventures in Space}} ''Lorebook of the Void''.</ref>