[SigilBear]

I have a reference book in the public domain that I'm turning into an ebook. However, the book is very updated, so I'm writing a second book from scratch that's more thorough and up to date.

However, I also want to update the public domain book to some extent. The ebook version will be almost an exact copy of the public domain book except for some style changes. Also, I'm stripping the footnotes out of the bottom of each page and turning them into end notes at the end of each chapter.

I'm also going to insert a few comments where needed. For example, if the original book says "Vermont has no state bird," I might write, "Today, Vermont is represented by the hermit thrush."

Other than these comments, I'm not going to add any material except for some front matter (introduction, etc.) and an appendix that will probably feature current lists of symbols. Oh, yes - I'm also going to add more pictures to the book.

So here are my questions:

1) How should I describe this book? Should I call it a "revision," an "annotated, updated version," an "upgrade," etc.?

2) How should I describe myself - as the co-author, editor, etc.?