This full course on advertising and success approach is a valuable addition to your collection. With four books published by A Delshar Publication, this textbook set covers the subject areas of advertising, public relations marketing and sales principals.  

These coursebooks are in very good condition with very little wear.  Note that I cannot find a publication year on them.  I was able to find just one comparable listing from a bookstore that referenced 1978 and they only have one set available making this a rare find.