"I have read your book (AKA my bible) Write to be Published and I have one small query:
I understand why it is wrong to send a publisher an unfinished book (i.e. you are offering them a product, which may never get off the drawing board and therefore potentially wasting everyone's time.)
"However, you say - in your book - that it's also 'against the rules' to do so with an agent (although you yourself did it, then didn't write the rest of that particular book).
"In the case of an agent, though, if they are, as you say, interested in 'you the writer' as well as 'you the book,' are there ever grounds for making overtures towards a possible agent, ahead of completing the MS?