Buy Autographed Book $35 Shipped

This is a great introduction for the general public to the book “Principia Mathematica 2” by one of the co-authors of the book, David de Hilster. Given on August 21, 2021 to friends and family, the intent of this introduction is to give an overview of why Bob and David de Hilster wrote the book, and what the book is all about. It is done for the total layman in mind. The book is now for sale worldwide on Amazon (

Autographed copies of the book can be ordered for the same price as found on Amazon in the United States. Simply go to and order yours today. T-Shirts and caps are also available.