Written by a 15-year-old high schooler, Astrophysics Simplified: A Simple Guide to the Universe is inspired by books like A Brief History of Time and Astrophysics for People in a Hurry.
This is a popular science (science for a general audience) book. It mainly focuses on the major developments in science by Aristotle and Ptolemy to physicists like Stephen Hawking and Richard Muller.
The various concepts of physics, like relativity and quantum physics, are explained in this book along with various topics in astrophysics and cosmology.
There is limited mathematics in this book, but some major equations are included. I have done so because one cannot grasp the true ‘beauty’ in physics without seeing the mathematical or abstract parts alongside practical laws.
Physics is to mathematics what Tony Stark (Iron Man) is to J.A.R.V.I.S. or F.R.I.D.AY. The groundwork of computations, statistics, simulations etc. is done by F.R.I.D.A.Y. But, the real work of fighting the villains is done by Iron Man.