To Order one or both Summa books on Amazon

click on one of the following three options:

God and Evil (Religious Man)
http://www.amazon.com/exec/obidos/ASIN/0980171008

God and Good (Spiritual Man) (including appendices)
http://www.amazon.com/exec/obidos/ASIN/0980171016

Summa Metaphysica Set
This 3-book set includes both titles, God and Evil (Religious Man) and God and Good (Spiritual Man) and Transcendent Dynamic (Secular Man)
http://www.amazon.com/Summa-Mataphysica-set-Transcendent-Metaphysica/dp/B00P1OATSI/ref=sr_1_1?ie=UTF8&qid=1432750965&sr=8-1&keywords=summa+metaphysica+david+birnbaum+series

note: Transcendent Dynamic (Secular Man) is not for sale