Anderson, Gene: The Part Time Pro ©1975 Gene Anderson Softcover, saddle-stitched, 5.5x8.5", 23 pages

Image courtesy eBay seller NinePatchAna

Comments: Advice about performing magic as a professional

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

1 Introduction
2 Framing the Act
3 Practicing
4 Routining
5 Tightening the Show
6 Selecting New Effects
7 Vocation vs Avocation
8 The Hello Paper Cut: instructions, template and patter