New Book on Space Colonies

I like to thank those who indicated an interest to contribute to the
proposed book about space colonies. Again, a good quality new book
can help in education and lobbying about space colonies, and
contribute to a rational debate - what first, Mars or space colonies?
I intend to start organizing the book early next year. I would appreciate
if any in the ssi group can suggest meanwhile topics and authors
through these ssi list discussion pages or directly to me at
LegacyBooks@...