Walker, Robert & Jon Racherbaumer (editor): Walker's Hyper-Twist ©1975 Jon Racherbaumer, Diamond's Magic FL Softcover, saddle-stitched, 9x10", 11 pages

Image courtesy eBay seller Rrath

Comments: Part of the "Paul Diamond Presents Magical Masterpieces" series, #2.

Contents (from book):

1 Introduction (Jon Racherbaumer)
2 Effect: A, 2, 3, 4 of Clubs turn Face up, then backs change to red and back to blue, then all the cards become 4 of Clubs
2 Requisite Cards & Set Up: Ungimmicked cards
2 Working
9 Intermission
9 To Begin: Performing the trick from a standard deck