[Lady Fitzgerald]

I've got 824 authors in my library that are listed as FN LN, both on the main screen and in the tag broweser. How can I change them to read LN, FN (the way I've always seen it done all my life; I'm 63, btw)? I would die of old age first if I have to do it all manually.

Also, will I have to manually change FN LN to LN, FN manually every time I add a book or is there a way to get calibre to do automatically?

Please keep in mind that I'm computer challenged and senile. I need simple, step by step directions.