This book describes the evolution of the science of Physics from the human perspective: biographical sketches, stories of discovery, fundamental principles, social significance. The book is a serious study, with lots of details but no math in the first two third of the book.For advanced readers, the "Next Level" chapter points the way for further study, using advanced high-school mathematics. The required math is summarized in the short "Your Math Toolkit" chapter just ahead of the "Next Level". Many of the results presented in the main body of the book are mathematically proven and some typical examples are calculated and solved there.It assumes that the reader has a serious interest in understanding the laws of Physics on which our lives depend every day. This is definitely not a pop-science book: it assumes that the reader wants to learn and has the confidence that any science, intelligently explained, and requiring no prerequisites, can be understood and enjoyed. Written for age 16 and above.