Great topic, thanks for starting this!
I'd like to make an itemized list, which includes the books you've already mentioned:
Alex Grey: Sacred Mirrors (one of the most groundbreaking visionary art books of all time)
Alex Grey: Transfigurations (picking up where Sacred Mirrors left off)
Alex Grey: Net Of Being (brand new, just as epic as the others.)
...and Alex is cranking out some of his most epic work as we speak, so stay tuned for more.
Www.cosm.orgRobert Venosa: Noospheres (beautiful organic psychedelia)
Robert Venosa: Illuminatus (at least as heavyweight a book as Noospheres)
Robert Venosa: Mannas Manna (haven't seen this one yet)
Venosa is no longer with us. He is survived by his partner, artist Martina Hoffman)
www.venosa.comDe Es Schwertberger: Heavy Light (An incredible chronicle of a spiritual transformation through art)
www.dees.atJohfra: Hoogste Lichten en Diepste Schaduwen (Johfra is not well known but was an important part of the psychedelic art movement. This book is big and thick and super impressive. Worth collecting even if you don't speak Dutch) I found that and other books by him here:
http://www.abebooks.com/book-search/title/johfra/Patrick Woodroffe: Pastures In The Sky (recent works, epic and visionary)
Patrick Woodroffe: Mythokoepion (early works including illustrations)
Woodroffe comes from deep in the 1960's psychedelic world.
http://www.patrickwoodroffe-world.com/Guy Aitchison: Organica
I feel funny including this in the list, because this fellow is your very own Guyomech. But I can tell you for a fact that it was very much inspired by psychedelic exploration, so it does qualify, and we are almost through our second printing of them.
Www.hyperspacestudios.comAnd then the darker visionary stuff:
H.R. Giger: Necronomicon
H.R. Giger: Necronomicon II
H.R. Giger: Biomechanics
H.R. Giger: New York City
Giger is the mind behind the dark biomechanical design in the original Ridley Scott Alien movie. These books are all absolutely epic, and although dark, are definitely in the psychedelic spectrum.
Www.hrgiger.comBeksinski: The Fantastic Art of Beksinski
There are a number of other titles available, mostly small, short run books. His work was both dark and transcendental, and utterly unique. Although many of his visions were nightmarish, his aim was always to create beautiful art.
https://morpheusgallery....ksinski/item.php?work=51If I think of any others, I'll add them.