Funny you should ask that!
(Shameless plug time.)
Yes, I did write a book about ethics. It's called When, Why ...If (because I figured you already know what, how, and where.) It's a workbook to help you figure out what your own system of ethics should be. As I have said before, I don't have all your answers; I'm hard pressed sometimes to have mine! And I wouldn't presume to tell you what is right and wrong for you.
But I wrote this book to help you figure it out for yourself.
Anyway, it's highly recommended by a number of people. If you want to look at the catalog page that shows it, here it is. If you want to see the other books I wrote, you can click on the "Prints etc." button in the Navigation Bar. (It's a link to everything I have for sale.)