Leo Angart is a business consultant, author and trainer. Having worn glasses for more than 25 years he writes from personal experience. It has now been more tha
Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing man
Leo Angart is a business consultant, author and trainer. Having worn glasses for more than 25 years he speaks from personal experience. It has now been more tha