This Collection contains the following Gregg Shorthand PDF scans.
5000 Most Used Shorthand Forms by HERNEST HORN
Fundamental Drills in Gregg Shorthand by GERTRUDE BEERS, M.A.
Gregg Shorthand Anniversary Edition by JOHN ROBERT GREGG, S. C. D.
Gregg Shorthand Dictionary by JOHN ROBERT GREGG, S. C. D.
Gregg Shorthand Quick Reference
Gregg Shorthand Pre-Anniversary Edition by JOHN ROBERT GREGG, S. C. D.
These are the best quality scans I was able to find of the books. Read, Practice, Enjoy!