Having said that, I do often see other easy-to-make mistakes that lessen the ultimate impact of their bio that have nothing to do with the content, but with the 'packaging'.
Here a 5-point checklist of things to avoid, and not just in your bio, but across the board:
- Non-standards fonts. Comic Sans is a perfect example. This 'fun' font has no place in business communications. Stick with the standards, especially on the web, where certain fonts are easier to read than others. (Here's a good artilce on this topic: Top 10 Fonts Web Designers Love.)
- Whimsical email addresses. The email address you use with family and friends is totally a personal choice, but avoid email addresses that lessen your credibility in the business world, for example: missyluvshorses, daddysgirl, footballhunk.
- Large signature files. Have you ever hit 'reply' to an email and then noticed that you had to wait while a file (not from you) uploads? This happens all the time, and it is the result of a nice, but too large email signature, probably containing a high-resolution logo or photo. If you are going to include these elements in your signature (and that's fine) make sure they are properly sized and compressed.
- Bad photo names. Every photo you use should be given a proper name, not just image002.jpg, or highresheadshot.jpg. Make sure and include a description of the photo, and always include your name if it's your photo! If for no other reason, make it easy for someone to search for your file if they have forgotten where they filed it. Same goes with poor file names, below.
- Poor file names. If you are sending your bio to someone, name it Jill-Townsend-bio. Not biojan2015.doc or biolatest.pdf. Everything is searchable these days, so make sure your files and photos can be easily found in a crowded inbox.
Take a few minutes to avoid these easy-to-make mistakes, and you will vastly increase your chances of your bio being found, read, and appreciated.