What's change? Moon and sun seemingly going around us, in time and space... The cells of our body changing through the complex metabolism within as they interact with their environment, and finally, our thoughts changing from how can I grab the best toy in the playground to how do we share the wonders of this planet and the universe... Change seems to be universal, physical as well as biological and social and mental.<br><br>And all of that we can describe using the eternal language of math and calculus, as we go about discovering its constant and infinite continents that we seem to have imagined out of nothing starting with numbers, "real" and truly imaginary, and ideal shapes and forms, points lines circles parabolas cubics spheres vectors matrices and graphs...<br><br>Reading this book, you'll get the insiders insights into how math makes physical theories work without being bored with its technical details. The devil may be there in the latter, but, the real understanding and joy is within you and this book points to them.<br><br>This nonfiction book, for me, was a page- turner, like a Dan Brown murder/thriller/mystery. And this despite many years of advanced math training I had towards having a PhD in engineering. Further, after a couple of years, I get back to it and start reading again with the same pleasure and joy. Wishing you the same.