Molecules and the Chemical Bond: An Introduction to Conceptual Valence Bond Theory: The Shortest and Simplest Route to Electron Density Profiles: A Ch

This book is about understanding Schrödinger's equation.
In his famous Lectures on Physics, Richard Feyman quotes Paul Dirac on what it means to understand an equation. "I understand what an equation means," said Dirac, "if I have a way of figuring out the characteristics of its solutions without actually solving it." That's precisely what Conceptual Valence Bond Theory does for Schrödinger's equation for chemical systems.
A "physical understanding" of an equation, adds Feynman, "is a completely unmathematical, imprecise, and inexact thing, but absolutely necessary for a physicist." It unfolds in MCB in two stages, described by Newton as a stage of "Analysis" (a union of observations and inductions) & a stage of "Synthesis" (use of inductions, accepted as first principles, to explain experimental observations).
Featured are a Major Induction, from Fermi Holes to electron-cloud-filling Kimball Domains, and Four Consiliences, between valence stroke diagrams and valence sphere models; a valence stroke termination rule and a famous theorem of density functional theory; principles of structural organic and inorganic chemistry; and leading features of computational and conceptual valence theory.
The book's chief vehicle for creating an intuitive understanding of solutions of 
Schrödinger's equation is the world's largest - and, to the author's knowledge, virtually only - library of line drawings of valence sphere models of molecules' electron density profiles.
Repetition of fundamental ideas, here and there in MCB, may make individual essays understandable and interesting each by itself, so that readers may examine them in any desired order, in leisurely walks, so to speak, in the big garden that is valence theory, picking bouquets to their liking.