The Institute sells official digital downloads. While they often push their Hemi-Sync audio, they also offer eBook bundles. These files are DRM-free in many cases and come as EPUB or high-quality PDF. Price: ~$9.99 per book.
When you search for "extra quality," you are moving beyond the basic 72 DPI (dots per inch) scans found on random blog spots. In the context of Robert Monroe libros PDF, extra quality implies: robert monroe libros pdf extra quality
Suppose you find a file that claims “extra quality.” Before you open it (be sure to virus scan it), check these metrics: The Institute sells official digital downloads