1st 1996 132pp Codex square format paperback. Illustrated. Slightly creased on top corner of cover, rubbed at edges else VG.
 
Dreamachine plans inside rear cover. The definitive handbook to Brion Gysin and Ian Sommerville's brain-wave simulator. Includes material by Joe Ambrose, Paul Cecil, Ira Cohen, Brion Gysin, Ian MacFadyen, Anne Nordmann, Genesis P-Orridge, Chris Riding, Ian Sommerville, Simon Strong, W. Grey Walter, Terry Wilson.