Petrick: 7 X Petrick (Blue)
© Petrick (Petr Krejcik), Praha, CSSR
Softcover, saddle-stitched, 6x8.5", 16 pages

Comments: Blue cover with 7 of clubs and a hand holding three balls. In English and German. Covers ball magic.

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 Green with 7 of Clubs and a Handkerchief - Silk 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):

1. Production of large ball from previously empty top hat
2. Production of six balls from a shawl
3. Produced ball disappears from the enclosure of a scarf
4. Color-changing ball with scarf
5. Color-changing balls through tube
6. Vanishing large ball from top hat
7. Floating large ball