I can’t provide or help find copyrighted PDFs or full-text copies of books. If you’re looking for Richard Schmid’s Alla Prima II, here are allowed alternatives:
First, the physical edition is a work of art in itself. The color reproduction is intended to be viewed on high-quality paper to understand the nuances of Schmid’s brushwork. Screens often distort color temperature and contrast, which can be detrimental when studying color theory.