A coworker of mine is wanting to move to another area to be near his children.He has applied for a job in maintenance at a tire factory.The position he is hired for depends on his score on a test.He is a good electrician but most most of his experiance is commercial.Would like to find some books on moter controls and plc's anyone have some good titles.lent him some of my books but they are all 15 years old so the plc end is a little outdated.As always thanks for any help in advance

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Look here for the books you need.

American Electrician’s Handbook

Smeaton, Switchgear and Control Handbook

Westinghouse, Electrical Maintenance Hints

McPartland, NEC Handbook

NFPA, NEC Handbook

Optional—Beeman, Industrial Power Systems Handbook

{All are lifetime-usable texts.}