Thanks Allisondbl for asking the questions, as it isnt simple to integrate Calibre and my new Kindle. I dont think either of us are computer illiterate though opinions may vary
I might not have noticed Meme's walkthrough otherwise, and it will be very useful in adapting my large epub library to use in the kindle.
Thanks meme for your great intro - I have just added several non DRM PDFs to my kindle and they are labelled by collection.