The book is about various conversion of energies like conversion of sun energy into light energy, conversion of sun energy is the way how the sun hits the solar panel and then it converts it to light which is good in our everyday lives'. Conversion of solar energy to chemical energy, conversion of solar energy to chemical energy is when you charge batteries using electricity generated by a solar power plant that means you are converting solar energy to chemical energy, conversion of solar energy to food, conversion of potential energy to kinetic energy, conversion of solar energy to mechanical energy, conversion of chemical energy to light energy and methodologies of solar energy.