New Book on Space Colonies

What are they?

More precisely, what are the markets that can allow a bootstrapping
process to lead to orbital development?
Off hand:
Space tourism (suborbital->orbital->hotels->accomodation for staff, space mining) SPS (difficult to justify, although may be justifiable, but could lead to orbital development, it is likely to be sustainable once started due to triggering cost reductions due to economies of scale of launch) any form of space mining (fuel or other material from an asteroid or moon returned to say, LEO/earth for money, useful for GEO sat launching) any cheap ( TangoMan