I suspect TSI is the copyright holder, since the manuals were probably written in the 1970s and not modified much except when the optacon 2 came out. I think, though, that I got the same stage 1 book for the optacon 2 as for the optacon 1. Mary To unsubscribe at any time, just send a message to: optacon-l-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the message subject. Tell your friends about the list. They can subscribe by sending a message to: optacon-l-request@xxxxxxxxxxxxx with the word "subscribe" (without the quotes) in the message subject.