Back when I was a kid, there were public service announcements on television telling us we could get free government publications by writing to an address in Pueblo, Colorado.
A few weeks after sending your request you would get a catalog in the mail from which you could select from a variety booklets on many different topics. Generally, you just had to pay postage and handling. The Federal Citizen Information Center still exists and guess what? You can still request free government publications from an address in Pueblo, Colorado. You can also order them online. Or, you can view the actual publications online. That's my personal preference, since I can certainly live without the extra paper around my house. So, why do I bring this up here. Well, there are several publications on the topic of employment. You'll also find links to non-print publications. Enjoy.