Below is a categorized collection of online resources and physical books on writing-related topics. You should be able to get the books via interlibrary loan either through the AER library or through the Calgary Public Library.
Bringhurst, Robert. The Elements of Typographic Style. Fourth Edition (Twentieth Anniversary Edition). Vancouver, BC: Hartley & Marks, 2012.
Kohl, John R. The Global English Style Guide: Writing Clear, Translatable Documentation for a Global Market. Cary, NC: SAS Institute, 2008.
McCarten, James (ed.). The Canadian Press Stylebook. 18th Edition. Toronto: The Canadian Press, 2018.
Microsoft. Microsoft Writing Style Guide. https://docs.microsoft.com/en-us/style-guide/welcome/.
Public Works and Government Services Canada. The Canadian Style. http://www.btb.termiumplus.gc.ca/tpv2guides/guides/tcdnstyl/index-eng.html?lang=eng.
Virag, Karen (ed.). Editing Canadian English: A Guide for Editors, Writers, and Everyone Who Works With Words. Third Edition. Toronto: Editors’ Association of Canada, 2015.
Wong, Dona M. The Wall Street Journal Guide to Information Graphics: The Dos and Dont’s of Presenting Data, Facts, and Figures. New York: W. W. Norton & Company, 2010.
Garner, Bryan A. Legal Writing in Plain English: A Text With Exercises. Second Edition. University of Chicago Press, 2013.
European Commission. Claire’s Clear Writing Tips. https://ec.europa.eu/info/files/claires-clear-writing-tips_en.
Kimble, Joseph. Lifting the Fog of Legalese: Essays on Plain Language. Durham, NC: Carolina Academic Press, 2011.
Kimble, Joseph. Writing for Dollars, Writing to Please: The Case for Plain Language in Business, Government, and Law. Durham, NC: Carolina Academic Press, 2012.
Sword, Helen. Stylish Academic Writing. Harvard University Press, 2012.
U.S. Securities and Exchange Commission. A Plain English Handbook: How to Create Clear SEC Disclosure Documents. https://www.sec.gov/pdf/handbook.pdf.
Willerton, Russell. Plain Language and Ethical Action: A Dialogic Approach to Technical Content in the Twenty-First Century. New York: Routledge, 2015.
Wydick, Richard C. Plain English for Lawyers. Fifth Edition. Durham, NC: Carolina Academic Press, 2005.
Plain Language Association InterNational—a nonprofit organization of plain-language advocates, professionals, and organizations committed to plain language. Links to government initiatives are under the “Government” tab, and Plain Language and the Law links are under the “Legal” tab.
Center for Plain Language—a U.S.-based advocate for clear communication and plain language in government, business, nonprofits, and universities.
The Plain Language Action and Information Network (PLAIN)—a group of federal (U.S.) employees from various agencies and specialties who support clear government writing, and who publish the Federal Plain Language Guidelines.
Fee, Margery and Janice McAlpine. Guide to Canadian English Usage: The Essential English Resource for Canadian Writers & Editors. Second Edition. Oxford University Press, 2011.
Garner, Bryan A. Garner’s Dictionary of Legal Usage. Third Edition. Oxford University Press, 2009.
Garner, Bryan A. Garner’s Modern English Usage. Fourth Edition. Oxford University Press, 2016.
Garner, Bryan A. The Chicago Guide to Grammar, Usage, and Punctuation. University of Chicago Press, 2016.
McIntosh, Colin. Oxford Collocations Dictionary for Students of English. Second Edition. Oxford University Press, 2009.
Daily Writing Tips—basic writing and grammar tips that are informative, idiosyncratic, and often amusing. Particularly relevant: the “Writing Basics” category (e.g., “8 Steps to More Concise Writing” and “10 Techniques for More Precise Writing”)
http://www.dailywritingtips.com
http://www.dailywritingtips.com/10-techniques-for-more-precise-writing
Peck’s English Pointers—a collection of articles on English grammar, usage, and clarity on the Translation Bureau of Canada site, which has many other “Writing Tools” on its “Home” tab.
http://www.btb.termiumplus.gc.ca/tpv2guides/guides/pep/index-eng.html?lang=eng
Butte College TIP Sheets—quite comprehensive and clear discussions about punctuation, grammar, sentence structure, and even critical thinking and logic.
Designsensory—twelve lessons, including worksheets, covering the active voice, trimming fat, reducing jargon, and denominalizing.
Harris, Lesley Ellen. Canadian Copyright Law. Fourth Edition. Hoboken, NJ: John Wiley & Sons, 2014.
Booth, Wayne C., Gregory G. Colomb, Joseph M. Williams, Joseph Bizup, and William T. Fitzgerald. The Craft of Research. Fourth Edition. University of Chicago Press, 2016.