This is what I have of the Benson books:
Benson - Coloured
Benson Art Book 2000
Ponygirl - Farm 01 (Claude Lenoir)
Slave World
Stable Mate (Simon Benson)
The Art Of Benson Part One
BEN-1 Silicone Valley Dolls (Andrew Parsons)
BEN-2 The Tower (Mike Vickers)
BEN-3 Bonda (Larry Lane)
BEN-4 The Rubber Institute (Simon Benson)
BEN-5 In The Claws Of Sex Robots DV8 (Simon Benson and K. Valery)
BEN-6
BEN-7 Fantasy Hotel (Mike Vickers)
BEN-8 Hanoi Hilton
BEN-9 Rubber Dolly (Simon Benson)
BEN-10 Rubber Harem (Simon Benson)
BEN-11 Silicone Valley Dolls Part II (Andrew Parsons)
BEN-12 The Rubber Prison (Mike Vickers)
BEN-13 Club Bizarre (K. Valery and Mike Vickers)
BEN-14 Rubber Ponygirls I - Rubber Harness (Mike Vickers)
BEN-15 Rubber Ponygirls II - Rubber Training (Mike Vickers)
Benson - Coloured
Benson Art Book 2000
Ponygirl - Farm 01 (Claude Lenoir)
Slave World
Stable Mate (Simon Benson)
The Art Of Benson Part One
BEN-1 Silicone Valley Dolls (Andrew Parsons)
BEN-2 The Tower (Mike Vickers)
BEN-3 Bonda (Larry Lane)
BEN-4 The Rubber Institute (Simon Benson)
BEN-5 In The Claws Of Sex Robots DV8 (Simon Benson and K. Valery)
BEN-6
BEN-7 Fantasy Hotel (Mike Vickers)
BEN-8 Hanoi Hilton
BEN-9 Rubber Dolly (Simon Benson)
BEN-10 Rubber Harem (Simon Benson)
BEN-11 Silicone Valley Dolls Part II (Andrew Parsons)
BEN-12 The Rubber Prison (Mike Vickers)
BEN-13 Club Bizarre (K. Valery and Mike Vickers)
BEN-14 Rubber Ponygirls I - Rubber Harness (Mike Vickers)
BEN-15 Rubber Ponygirls II - Rubber Training (Mike Vickers)