The Gregg Group was founded 22 May 2004, prompted by the lack of online shorthand resources. As the primary use for shorthand — business and legal recording — has waned in recent decades, we generally acclaim the skill as a hobby or personal tool. The purpose of the group is to promote the use of Gregg systems of shorthand by providing advice to beginners, support for students, and an association of users of this efficient, attractive, and enjoyable method of writing.
OK, I’ve heard of Greghand and Notehand… but Gregg Briefhand? I found this page on the Rider University website. The book is from 1951 and has 231 pages. It’s written by Louis A. Leslie & Charles E. Zoubek, but it’s published by Shorthand Associates.
Has anyone seen this one before or does anyone know anything about it?