Petrick: 7 X Petrick (Green) © Petrick (Petr Krejcik), Praha, CSSR Softcover, saddle-stitched, 6x8.5", 14 pages

Image from Magicref

Comments: Green cover with a 7 of clubs and a handkerchief. Covers magic with silks.
The Seven by Petrick Series were released in seven volumes, each with seven tricks, and each with a different color cover and topic covered. The others were:
7X Petrick Red with 7 of Hearts - Cards
7X Petrick Blue with 7 of Clubs and hand with Billiard Balls - Ball Magic
7X Petrick Orange with Joker - Cards
7X Petrick Black with 7 of Spades - Cards
7X Petrick Maroon with silhouette of Petrick Throwing a Ball - Stage Magic
7X Petrick Purple with silhouette of Petrick's profile - Miscellaneous Magic

Contents (Andrew Pinard, and book):

1 A knot tied by the performer changes into a colorful bouquet
3 Bow-tie removed by the performer transforms into a black scarf. Bow-tie then reappears on the performer's neck.
5 Performer produces a number of giant coins from a sheer scarf
7 Penetration of a giant coin through a scarf
9 Three scarves are tied together in one corner and then transform to a chain of scarves
11 The production of many banknotes (bills) from the center of a sheer scarf.
13 Three knots tied in the center of three scarves vanish despite the ends of the three scarves being tied together in a circle.