OK, first and foremost, this is not a language learning book. What it is is a "learning aid" book that motivates your interest and curiosity of the structure and origins of the Chinese written language. What do I mean? If you are learning Chinese, it describes many relationships between characters that enhance your ability to remember them, as well as recognize insights to meanings of characters you do not even know. In some ways it is a narrative version of another excellent book, the more dictionary-like "Reading and Writing Chinese: A Guide to the Chinese Writing System" by William McNaughton and Li Ying. Both excellently address the origins and relationships between characters, but with very different styles.
Chang and Chang colorfully, interestingly, and amusingly describes contrasts, contradictions, and anomalies in character formation. It is a charming book that I would highly recommend to the language student.
Even if you are not learning the language, the book still offers interesting discussions about characters. Western languages, and many others, are truly different from the "phonetic" languages so many of us know. Chinese construction is old, yet novel, so meaning-rich, that it presents an interesting discussion and perspective. And the writing itself remains unchanged over a much longer period than western languages.
Read a few of its pages and see if you don't agree.