Do you want to become a paid freelance proofreader?

Get step-by-step instruction on how to proofread and start your business.

Proofreading is a highly marketable skill. Training in this area can greatly increase your employment or freelance business prospects. "Proofreading Power Business Builder" is the fully loaded flagship online course for our proofreading skills training. If you are serious about becoming a paid freelance proofreader, this class is for you! This self-paced online course provides in-depth skills training for proofreaders in freelance and corporate situations. As a student, you get to try your hand at grammar and proofreading exercises to test and improve your current skills.
  • Before diving into this course, you must ensure that your grammar skills are above average, since effective, overall proofreading relies on top-notch grammar skills. Also, you must already be a pretty good writer to catch mistakes.
  • If you need a grammar refresher, we offer three excellent grammar courses to boost your skills: "Core Grammar Essentials," "Workplace Grammar & Style" and "Business Grammar Essentials." Learn more about these classes by clicking "All Courses" above or visit the website:

Build a Proofreading Business. Increase your income!

Proofreaders are highly sought after in corporate workplaces and by small businesses, authors, content creators, self-publishers and online entrepreneurs. The field of proofreading is wide open. If you are good with words and finding errors, your income potential is limitless, especially if you know how to hustle! The free ebook version is included with this class.
start your proofreading side-hustle

What You Get

As an individual (single user) taking this class for personal or professional development, you have full access to class materials for your specified time of enrollment (no expiration for lifetime access). You must complete all lessons and surveys to receive your certificate. Learn at your own pace. The instructor retains all copyright ownership for all of the materials presented in this course. Any resources not directly written by the instructor are duly noted and properly cited. Students are expected to abide by fair use laws when printing course materials. No part of this course may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the author.

  • Video Lessons
    Lecture Slides
    PDF Handouts

  • Free "Side-Hustle" ebook (PDF)

  • One-time payment. Lifetime Access.

  • Certificate of Completion

  • Easy Payment via PayPal or Stripe (which also includes Alipay, Bancontact, EPS, WeChat Pay, giropay, iDEAL, Multibanco, SOFORT, and P24).

Course Curriculum

Click the "plus +" signs.

  • 1

    Getting Started

  • 2

    Proofreader Expectations

    • Video: Proofreader Expectations

    • Slides: Proofreader Expectations

    • PDF: Proofreader Checklist

    • Quiz: Proofreader Expectations

  • 3

    Grammar Assessment

    • Grammar Quiz

    • Grammar Classes

  • 4

    Preparing to Proofread

    • Video: Proofreading Prep

    • Slides: Proofreading Prep

    • Practice: Sample Email

  • 5

    Proofreading Tips

    • Video: Proofreading Tips

    • Slides: Proofreading Tips

    • On-screen Exercise #1

    • Answers: On-screen #1

    • Quiz: Proofing Tips

  • 6

    Proofreading Strategies

    • Video: Proofreading Strategies

    • Slides: Proofreading Strategies

    • On-screen Exercise #2

    • Answers: On-screen #2

    • Quiz: Sample Agenda

  • 7

    Proofreading Rules

    • Video: Proofreading Essentials

    • Slides: Proofreading Essentials

    • Warm-Up Exercise #3

    • Answers: Exercise #3

  • 8

    Proofreading Marks

    • Video: Proofreading Marks

    • Slides: Proofreading Marks

    • PDF Slides: Proofreading Marks

    • Handout: Proofreading Marks

    • Quiz: Proofing Marks

  • 9

    Proofreading vs. Editing

    • Video: Proofing vs. Editing

    • Slides: Proofing vs. Editing

    • Handout: Proofing vs. Editing

    • Exercise: Proofing vs. Editing

    • Answers: Proofing vs. Editing

    • Social Media Exercise

    • Quiz: Proofreading Grammar

  • 10

    Proofreader Hotspots

    • Video: Proofreader Errors

    • Slides: Proofreader Errors

    • Video: Error Hotspots

    • Slides: Error Hotspots

    • Exercise: Characters

    • Answers: Characters

    • Quiz: Error Hotspots

  • 11

    Proofreading for Spelling

    • Video: Spelling Tips

    • Slides: Spelling Tips

    • PDF: U.S./BRITISH/CANADIAN Spellings

    • Exercise: Spelling

    • Answers: Spelling

    • Quiz: Spelling Errors

  • 12

    Proofreading for Capitalization

    • Video: Capitalization

    • Slides: Capitalization

    • Handout: Capitalization Chart

    • Exercise: Capitalization

    • Answers: Capitalization

    • Quiz: Capitalization

  • 13

    Proofreading Business Scenario

    • Business Scenario

    • Quiz: Business Scenario

    • Make Corrections

    • Answer: Make Corrections

  • 14

    Proofreading Numbers

    • Video: General Rules

    • Slides: General Rules

    • Video: Numbers & Words

    • Slides: Numbers as Words

    • Slides: Numbers as Numerals

    • PDF: Numbers Exercise

    • Answers: Numbers Exercise

    • Quiz: Numbers

  • 15

    Proofreading Usage

    • Video: Usage Errors

    • Slides: Usage Errors

    • Handout: Usage Errors

    • Exercise: Usage Errors

    • Answers: Usage Errors

    • Quiz: Who/I/Myself

    • Quiz: Usage Errors

  • 16

    Proofreading Punctuation

    • Video: Punctuation I

    • Video: Punctuation II

    • Video: Apostrophes

    • Slides: Apostrophes

    • Quiz: Apostrophes

    • Slides: Asterisk

    • Slides: Brackets & Colons

    • Quiz: Brackets/Colons...

    • Slides: Parentheses

    • Slides: Quotation Marks

    • Quiz: Quotation Marks

    • Exercise: Punctuation

    • Answers: Punctuation

  • 17

    Comma Usage

    • Video: Comma Usage

    • Slides: Comma Usage

    • Quiz: Commas

  • 18

    Proofreading Test

    • Quiz: Proofreading Test

    • PDF: Proofreading Test & Answers

  • 19

    Style Guides

    • Video: Using Style Guides

    • Slides: Using Style Guides

    • Quiz: Style Guides

  • 20

    Practice: Client Assignment

    • Video: Track Changes

    • PDF: Assignment Instructions

    • DOC: Client Assignment

    • PDF: Assignment Answers

  • 21

    Start Freelance Proofreading

    • Receiving Clients Online

    • Download: Proofread a News Article

    • Answers: Proofread a News Article

  • 22

    Build Your Business/Find Jobs

    • PDF: Finding Clients

    • PDF: 38 Proofreader & Editor Jobs

    • PDF eBook: "Start Your Proofreading Side-Hustle"

  • 23

    Before You Finish

    • Audio: Conclusion

    • Quiz: Final Quiz

    • Proofreading Books

    • New Copyediting Book

    • Grammar Books

    • Your Certificate

    • Course Review

Student Testimonial

“I loved this course! The instructor has a pleasant voice and way of speaking that engages and entertains. It made learning easy for me and meshed with my learning style. I breezed right through the lessons while taking notes along the way. Enjoyed the quizzes and learned a lot along the way.”

Christopher W. James

Course Reviews

5 star rating


Jackie Donner

This is an excellent course! I spent almost $700 on another proofreading course and this one is much better. Ashan provides precise and concise information that makes it easy to get through the material quickly. There are lots of practice question...

Read More

This is an excellent course! I spent almost $700 on another proofreading course and this one is much better. Ashan provides precise and concise information that makes it easy to get through the material quickly. There are lots of practice questions typical of what you would come across in everyday life. Ashan responds to student questions fast with detailed explanations.

Read Less


  • Is there a time limit on enrollment?

    Instead of a few hours in a one-day workshop, webinar or tutoring session, our self-paced online classes are built to deliver high quality training in a short amount of time for students and busy professionals. Most classes for individual users come with lifetime access. If not, please note the class duration and complete the course before the expiration date (if any).

  • Why are there no refunds?

    All enrollments are final. No refunds. Our courses have taken copious amounts of time, soul energy, and personal finances to build. We are confident that all of our courses deliver the exact instruction you need to improve your writing skills. Please take our low-cost introductory class, "Grammar Essentials Jump-start" to get a good feel for the value you receive at such affordable prices. You will not be disappointed!

  • When will I receive my certificate?

    When you have fulfilled all class requirements, and have scored a 80% or above on all assignments, you will receive a certificate within 24-48 hours after you have finished the class, not to exceed 7 days after you finish, depending on holidays and high class volumes.

Get started!

For individuals only, not groups. Click the "Enroll Now" button to get started!