Experimental photography includes alternative process techniques, and broadly refers to any photographic process or product falling outside the realm of straight film or digital photography. However, that comes close to a definition. It may be more appropriate not to define what experimental photography is (or isn't).
Photographers included in this issue:
Boris Mikhailov, Stephen Gill, Alexander Binder, Harold Strak, Sebastiaan Bremer, Kenji Hirasawa, Melanie Bonajo, Taisuke Koyama, Arjen Born, Patrick Sijben, among others.