You may think a quick spell-check (or a thorough one) and reading the document a hundred million times is a good replacement for hiring editors. You might even send it to friends and read editing blogs and do all kinds of other things to help you do a better job editing your own book . . . but it’s not the same. Hiring a professional editor is invaluable, and here’s why:

Proper punctuation is really important! Today we will be learning about colons.

Punctuation can get really tricky! This post talks about how to use parentheses properly.