That's a pretty broad subject(no pun intended), and it would help if you could be more precise about what particular information you're seeking regarding canoes, and rescue.
It is very hard to comment on this question.
Before he deleted it
He said he has a canoe livery and is looking for advice on how to do in water rescues of his clients. He said they have done the T and then got the clients back into the canoe. This year they are going to have a canoe with a motor to send out to do the T. He also toyed with the idea of towing swamped canoes back to shore.
He (or she) was wondering if we had any other ideas on how to rescue his mostly never-canoed-before customers using "in water" techniques.