The highly skilled and experienced linguist R.L. Trask offers no-nonsense vocabulary advice Say What You Mean!: A Troubleshooter's Guide To English Style & Usage.. Structured like a dictionary, Say What You Mean! is specifically a compendium of English words that are all-too-often misused or confused - such as "sped" vs. "speeded", and the proper usage of "Sir" or "Dame" - these titles may be used with the full name or just first name, but using them with the last name only is improper! Although particularly useful for British English speakers adjusting to American English spellings and definitions and vice-versa, Say What You Mean! is an utterly invaluable reference and serious-minded writers of all formats are enthusiastically recommended to peruse Say What You Mean! cover to cover in order to avoid common mistakes and misconceptions.