David Crystal’s The Cambridge Encyclopedia of the English Language is a landmark reference that offers a wide-ranging, scholarly, and yet highly accessible exploration of the English language. Now in its third edition (2019), this work is not merely an encyclopedia in the traditional sense, but a richly illustrated and analytically structured guide that brings together historical, structural, sociolinguistic, and cultural dimensions of English in one comprehensive volume. Its six-part organization allows readers to engage with the evolution, structure, usage, and diversity of English in a logical and interconnected manner.