Hi Chuck,
I'm not aware of any Lawson "how-to" books in print. Lawson does offer web-based self-paced training classes for a fee or yearly subscription, but you need to have a client ID in order to register and/or access them, which means they aren't available to the general public. Even though Lawson doesn't have the audience of an SAP or Oracle (hence the lack of "official" publications), it's still a pretty robust package, and there is a lot you'd need to learn...what type of information are you looking for?