"Jig And Fixture Design" 5th Edition, by Edward G. Hoffman was published in 2004, there is probably a 6th edition out now, but this edition is well into the computer age. I found this uploaded to the internet back in 2013, probably when the 6th edition came out, it is very well illustrated with many examples of modern jig and fixture designs. It was published by Delmar,Cengage Learning, a long time publisher of technical learning titles.
To download "Jigs And Fixture Design" 5th Edition go to my Books - Free Downloads page. # 68 - 8 MB - pdf, enjoy.