The new fourth edition of the ""Health Professionals Style Manual"" teaches the basic principles of writing style, composition, grammar, word usage and misusage to health care professionals. It includes updated resources, references, and the following rules and tools: style and substance; art of effective writing; tips and pitfalls; redundancies, euphemisms, and cliches; computers and the Internet; common abbreviations and acronyms; commonly misspelled words; using prefixes and suffixes; and, common proofreader's marks.