"Selbstbau." . . "Selbstbau" . . . "Provides information on tools, ropes, knots, ladders, and other equipment and supplies needed for building a tree house, and offers five basic designs that can be built." . . . . . . . . "Handbooks and manuals" . "Baumhäuser" . "Baumhäuser selbst bauen" . . . . . "Electronic books" . "Anleitung" . . "Tree houses you can actually build"@en . "Tree houses you can actually build" . . . . . . . . . "legehuse." . . "Baumhaus." . . "Baumhaus" . . .