How to Use Hyphens    by Dr. Kirk Mahoney
Price: $3.99 USD. 5430 words. Language: English. Published on March 6, 2012. Nonfiction » Reference » Grammar and punctuation.
Which of These Sentences Has a Hyphenation Mistake? The winner of the pie-eating contest ate ninety nine pies. The seven-foot tall man was obvious in the crowd. Her two-thirds share of the business meant that she called the shots. She owned two-thirds of the voting stock in the business. How to Use Hyphens will teach you how to find and fix all mistakes!

Self-Editing: Two Half Brains Make a Whole Writer    by Deborah J. Lightfoot
Price: $0.99 USD. 13070 words. Language: English. Published by Seven Rivers Publishing  on September 20, 2011. Nonfiction » Reference » Writing skills.
(5.00 from 3 reviews)
Self-Editing: Bringing Out Your Best (Two Half Brains Make a Whole Writer) -- practical professional advice from Deborah J. Lightfoot, published author and gainfully employed editor. Drawn from the author's 25 years of experience in newspaper, magazine, and book writing and editing, this book offers nuts-and-bolts advice on fixing common errors: eliminating wordiness, using the active voice, etc.

Semicolons and Colons: A Guide for the 21st Century    by Lenny Everson
Price: Free! 2830 words. Language: English. Published on August 28, 2011. Nonfiction » Reference » Grammar and punctuation.
(5.00 from 1 review)
A short manual on the uses of colons and semicolons.

Reading English News on the Internet: A Guide to Connectors, Verbs, Expressions, and Vocabulary for the ESL Student    by David Petersen
Price: $7.99 USD. 27980 words. Language: English. Published on July 8, 2011. Nonfiction » Reference » Grammar and punctuation.
"Reading English News on the Internet" helps students make sense of "media English" as found online, in newspapers, and in magazines. This condensed ebook version covers nearly 200 connectors, phrasal verbs, idiomatic verb phrases, and everyday expressions. There are also tips on reading news, sports, and finance articles online, as well as mini-quizzes and a final exams.

The Passive Activist    by Graham Murray
Price: $0.99 USD. 2090 words. Language: English. Published by Living Books USA  on June 30, 2011. Nonfiction » Reference » Grammar and punctuation.
ACTIVE vs. PASSIVE writing explained. A quick guide for everyone. Guaranteed to make your writing LEAP off the page!

Come Again?    by Graham Murray
Price: $0.99 USD. 6170 words. Language: English. Published by Living Books USA  on June 24, 2011. Nonfiction » Reference » Writing skills.
There is no doubt that for most writers, good dialogue is the hardest part of good writing. “Come Again?” contains everything aspiring writers need to know about writing and correctly punctuating good dialogue - essential in an good writing.

Guia Prático da Reforma Ortográfica    by Walace Freitas
Price: $0.99 USD. 21980 words. Language: Portuguese. Published on May 15, 2011. Nonfiction » Reference » Grammar and punctuation.
O que muda com a nova ortografia? Quais as palavras que têm acento ainda? O hífen acabou? São muitas as dúvidas e poucas as respostas objetivas. O Guia Prático da Reforma Ortográfica pretende ser uma destas respostas. Em linguagem acessível, você fica sabendo o que muda em nossa ortografia, além de entender melhor quais as polêmicas que cercam o Acordo Ortográfico.

Book on English Grammar, Punctuation and Capitalization.    by The Gifted Learning Project 
Price: $0.99 USD. 12780 words. Language: English. Published on April 15, 2011. Nonfiction » Reference » Grammar and punctuation.
The How to Grammar Page includes over 38 pages of information. Refresh your English/Grammar skills and read everything from the rules of English and Grammar to correct punctuation and capitalization. Easy to understand examples for each topic are also included to help explain each rule properly.

300 Days of Better Writing    by David  Bowman
Price: $9.95 USD. 64370 words. Language: English. Published on July 7, 2010. Nonfiction » Reference » Writing skills.
300 strategies for improving your writing. Strategies are short and to the point (150-250 words each), with explanations, instructions, and samples for each strategy. Learn from them one day at a time or find the strategies you need. Midwest Book Review calls 300 Days of Better Writing "a choice pick."