Book excerpt: This book is a compilation of my 3 articles published in ResearchGate: 1) Definitive scientific proof of the Divinity of the Arabic script; 2) Evidence of a highly intelligent, built-in scientific design in the Arabic script and 3) Unique biological and scientific connections in novel single letter meanings of the classical Arabic. In these papers I show that the Arabic script is Divine because it uniquely defines the meaning of each words by the shape of the letters and the letters draw a picture of the meaning. Each letter has independent meaning and even the empty spaces or dots of the Arabic script have definitive meanings which appear to have a profound scientific basis related to different human body parts or other natural phenomenon. This pictorial nature of the built-in scientific principles extends to words for atom or butterfly which depict the structure of the atom or butterfly’s life-cycle, unbelievable as it may sound. The findings of this book imply that the theories of language development in humans based on mimicry of animal sounds are incorrect. This book also would greatly simplify the learning of the Arabic language because of the principles of single-letter meanings.