The most common mistake I see in resumes is having a mix of hyphens and en dashes in the resume date ranges.
There are three types of dashes in the world:
Hyphens: used to join compound words. Example: mother-in-law
En Dashes: a dash that is the width of a letter “n.” Used to show ranges. Example: 2005–2009
Em Dashes: a dash that is the width of a letter “m.” Used to show additional information. Example: My mother made a pie on Monday—boy, was it good!
The AutoCorrect feature in MS Word tries to be helpful and when you type “space hyphen space” it thinks “oh, this is a date range” and will turn the hyphen to an en dash for you (unless you disable this feature). But if you type, “space hyphen up-arrow” it does not.
Thus one can get a mix of hyphens and en dashes in your date ranges.
According to The Chicago Manual of Style a date range should be punctuated using an en dash and no space before and after: 2005–Present
Check your resume—this is an easy error to fix!
My next blog post: Overcoming Resume Myopia