This is the little sister of the Writer's Manual so if you're looking at them both and wondering why one is cheaper, there's a reason. There's less in it. Mind you, it does call itself the Pocket Writer's Handbook so we can hardly complain. I recommend this and its big brother to everyone I meet who writes for a living, whether it's emails, brochures or books that earn them their crust. You get more for your money with the big one, but if you really want something to carry around with you, this is it.
Each one of its sections - on grammar, spelling, punctuation and usage - is interesting enough to read on the train without falling asleep.
(The Manual also has vocabulary, communication, style and a chunky section on business writing: how to structure everything from letters and memos to reports and academic works.)
If you enjoy discovering ways to improve your writing, you'll probably want the whole matching set to keep by your laptop (or your inkwell), from the Penguin Dictionary of English Idioms to the Concise Thesaurus.
Start here and you won't go far wrong.
Penguin Pocket Writers Handbook (Penguin Pocket Books) (英語) マスマーケット – 2006/8/29
Martin Manser is a professional reference-book editor who has worked on more than one hundred reference books including: The Penguin Wordmaster Dictionary, The Bloomsbury Good Word Guide, Chambers' Dictionary of Synonyms and Antonyms, The Macmillan Student's Dictionary and The New Penguin Thesaurus. Stephen Curtis was an English lecturer for ten years and since 1988 has worked as a freelance lexicographer, translator and writer. He has recently contributed to: The Encarta World English Dictionary, The New Penguin English Dictionary. He is author of Increase Your Word Power and (also with Martin Manser) The Wordsworth Crossword Companion.