I learned it from a course where my professor had his own notes printed by the school bookstore for us, and I've held onto those notes like they're gold. So I c

I learned it from a course where my professor had his own notes printed by the school bookstore for us, and I've held onto those notes like they're gold. So I can't refer you anything by firsthand knowledge, but the internet seems to like Dorf & Bishop's Modern Control Systems, which seems like a decent coverage of the basics: https://smile.amazon.com/Modern-Control-Systems-13th-Richard-dp-0134407628/dp/0134407628/ https://smile.amazon.com/Modern-Control-Systems-13th-Richard...