itimpi-thanks for the question....
To get the book into Calibre the first time, I did 'find books', then 'convert books' if it was necessary.
Then I did 'send to device' to get it from Calibre to Nook.
However, after I change the title, I am NOT 'sending to device'...I'm assuming syncing takes place without doing that....what am I doing wrong?
Thanks in advance for all help.