A Guide to the Creation of Worlds: Basics of Practical Cosmoinventology | Boris Kriger
This book raises questions why our world is such, and not different, showing a lot of opportunities to create other worlds, in some ways similar, and in some things fundamentally different from ours. The book offers the highest moral law of the creators - not to create imperfect worlds, painful for their inhabitants.
A Guide to the Creation of Worlds: Basics of Practical Cosmoinventology | 
