**Minority Languages of China, 1999, No. 1**
This article by Zhou Youguang investigates the general laws governing the development of writing systems, distinguishing them from the (already well-studied) laws of language evolution—a topic he argues remains understudied and contested. He analyzes writing from two angles: external form (script style and glyph shape) and internal structure (representational method and letter type). Comparing Chinese characters, cuneiform, Egyptian hieroglyphs, Mayan glyphs, Yi script, and Naxi Dongba/Geba scripts, he classifies script styles into three types—pictographic, stroke-based, and cursive—showing how writing tools (brush, stylus, reed pen) determined which styles a script developed, and how glyphs evolve via simplification/complication, squaring/rounding, and assimilation/differentiation. He also discusses trends in representational structure. The article concludes that writing generally evolves from pictographic/ideographic through logo-phonetic to purely phonetic representation, while letters progress from syllabic to consonantal to full phonemic alphabets.
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