This book mainly deals with the design of flow reactors for homogeneous reactions. ChE CRE is built upon lecture notes of “Chemical Reaction Engineering (CRE)” that the author has taught at the undergraduate (UG) level. Few chapters are added toward the latter part of the book, dealing with the basics of heterogeneous chemical reaction engineering. ChE CRE is recommended for teaching the upper undergraduate program when the students have been exposed to stoichiometry, thermodynamics, fluid dynamics, unit operation, and a few numerical techniques. ChE CRE comes with the audio lectures synchronized with the book chapters and is freely downloadable from the web-link prescribed in the book.