It's its, not it's!
Having learned English as a foreign language back in Venezuela, where my teachers emphasized spelling and grammar, has endowed me with an ability to “see a typo a mile away,” as a friend used to say. I also know the differences between “its” and “it’s,” “there,” “their” and “they’re,” “affect” and “effect,” and so on. I love that people pay me to catch such typos! I am also someone who can read a book, or a specifications manual, or a set of drawings, and see that what was said on page 33 doesn’t match what is said on page 133. In public architecture, that kind of mistake can be very embarrassing and costly.
In other circumstances, typos can result in unintended humor, or a sense of distrust of the author. How would you feel about a school or university with typos on their websites or correspondence?
I offer proofreading services to all kinds of persons and companies. If you strive for perfection, please call me.