Posgate, Bruce: The Art Of Blowing Bubbles ©1980 Bruce Posgate, Toronto, Canada Softcover, saddle-stitched, 8.5x11", 14 pages

Image courtesy eBay seller MagicByJim2

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Contents (from web description, numbers are not page numbers):

1 A Good Mixture For Soap Bubbles
2 Bubble Blowers
3 Bubble Blowing Is A Messy Business
4 Useful Accessories
5 Presentation Bubbles Galore
6 Bigger And Better Bubbles
7 Double Bubbles
8 Bubble Acrobatics
9 The Wobble Bubble
10 The Runaway Bubble
11 The Two-In-One Bubble
12 An Easier Double-Bubble Effect
13 The Bubble Necklace
14 Effects With Two Discs
15 The Concertina Bubble
16 The Unbreakable Bubble
17 Smoke Bubbles
18 The Vanishing Bubble
19 Pretty Bubbles In The Air
20 Magic Bubbles
21 More Wobbly Bubbles
22 Illuminated Smoke Bubbles
23 The Art Of Blowing Bubbles
24 Finis