The Penguin Guide to Punctuation

R L Trask has taught in the School of Cognitive and Computing Sciences at the University of Sussex since 1988. He is the author of a number of books, including A DICTIONARY OF GRAMMATICAL TERMS IN LINGUISTICS, LANGUAGE CHANGE, LANGUAGE: THE BASICS, A DICTIONARY OF PHONETICS AND PHONOLOGY, HISTORICAL LINGUISTICS and THE HISTORY OF BASQUE.

Why learn to punctuate?; the full stop, the question m ark and the exclemation mark; the comma; the colon and semi-colon; the apostrophe; the hyphen and the dash; capital letters and abbreviations; quotation marks; miscellaneous; punctuating essays and letters.