Duncan Koerber
University Professor
8
active courses
4
removed courses
Dec 2015
first content date
Apr 2024
last content date
36065
total students
7314
total reviews
4.59
average rating
19
total content length
Courses
Kickstart a Freelance Editor & Proofreader Career on Upwork
6.3K
students
2 hours
content
Apr 2024
updated
$94.99
Cover Letter Mastery Writing to Get the Job You Want
1.1K
students
1.5 hours
content
Apr 2024
updated
$44.99
How to Find & Correct Writing Errors: The Proofreading Guide
4.8K
students
1 hour
content
Apr 2024
updated
$64.99
7 Lessons on Writing for Becoming a Standout Writer
16.9K
students
2.5 hours
content
Apr 2024
updated
$89.99
