Creativity for graphic designers by Mark Oldach

this listing is for the book creativity for graphic designers by Mark Oldach. this has a book list price of 1999 but if you Google it, it has gone up in value since it was printed as it is a vintage graphic design book. this book is copyright 1995 and this copy is in like new condition. so while the content is still fairly relevant, this is also a collector piece for anyone who is a graphic design artist. so I am asking $50 for this which I think is fair since it is now a collector's piece.