This book derives the form of the Standard Model of Elementary Particles from thirteen fundamental postulates. In addition a theory of Dark Matter and Dark Energy naturally emerges from this derivation upon the addition of two more postulates. The Standard Model theory can be simply united with Quantum Gravity to obtain a unified theory of all known forces. The key postulate for the Standard Model derivation is that Nature has a GL(16) symmetry that is broken to a GL(4) x GL(4) symmetry. The dimensions of one of the GL(4) representations (its coordinates) are compactified and its only remnants are the three known generations of fermions and a fourth generation that we postulate constitutes Dark Matter. Assuming that the fourth generation has its own ElectroWeak sector we identify Dark Energy with its dark photons. The uncompactified GL(4) is broken to a complexified Lorentz group that supports four species of fermions. Two species comprise the leptons. Lepton doublets consist of a charged lepton (Dirac fermion) and a tachyon (neutrino). The other two species we identify with up-type and down-type quarks. They embody a natural global SU(3) symmetry that we generalize to color SU(3). As part of the development we show how to create a canonically quantized tachyon Quantum Field Theory. The result of these efforts is a theory that brings particle physics to a new depth of understanding and provides a detailed understanding of the reason for the Standard Models unusual form. This volume also contains Quantum Theory of the Third Kind: A New Type of Divergence-free Quantum Field Theory Supporting a Unified Standard ModelStandard Model of Elementary Particles and Quantum Gravity based on a NewMethod in the Calculus of Variations. This book describes a new approach to Quantum Field Theory based on non-commuting coordinates. The new approach makes all diagrams calculated in perturbation theory finite. It enables the Standard Model to be united with Quantum Gravity to produce a finite theory totally without divergences.