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I've always been good enough when it comes to spelling and grammar that I can write out documents and copy coherently and without obvious errors. Occasionally one or two things slip through, but I don't think it's realistic to expect everyone to get everything one hundred percent of the time. The thing is, at my current workplace it seems to be a bigger problem than I would've imagined.
I won't go into specifics, (I know I'm not the only one who browses StackExchange on lunch occasionally, and I'm sure I'm not the only one who has noticed) but on a few occasions documents have been sent to customers and promotional material has been printed in bulk with obvious errors, and it reflects on everyone in our small-ish company.
Perfect spelling and grammar aren't everyone's forte so I would never call them out in front of the office or belittle them for it, but at the same time it still feels patronising or condescending to say something along the lines of "Hey, would you mind if I just proofread that before you send it out?", especially considering I'm relatively young and with a university education whereas a lot of the culprits are older and "learned it all on the job".
I've offered before (to the office in general) to scan over copy or marketing emails, but I think the group of people who are most often responsible aren't even aware of their mistakes.
What's the politest way to get the point across that mistakes in things given or sent to customers makes us all look less professional without making people feel belittled, while still making it clear that some people need to get their work proofread? Or am I just going to have to suck this one up and deal with it?
Edit: I don't want to proofread literally everything everyone does, but it's my opinion that ten minutes between tasks every now and then is worth it. Also, there is quite a flat management structure. Everyone more or less self-manages and reports to the CEO who can be as bad at times as anyone else, so I can't take this one up the ranks so to speak.