Writing Systems of the World: Alphabets, Syllabaries, Pictograms
The Story of Writing: Alphabets, Hieroglyphs & Pictograms
Lost Languages: The Enigma of the World's Undeciphered Scripts
The World's Major Languages
Letter Perfect: The Marvelous History of Our Alphabet From A to Z
Fluent Forever: How to Learn Any Language Fast and Never Forget It
The Cambridge Encyclopedia of Language
The Art of Language Invention: From Horse-Lords to Dark Elves, the Words Behind World-Building