
There are many reasons artists should have a biography. But the most important is that your biography takes your clients back in time to when you began and why. It also provides important information about your studies and of course your inspirations and/or mentors in the creative arena.
Here are some Links
http://www.theaccidentalartist.com/content/art-careers/how-write-artist%27s-biography
http://www.artbizblog.com/2010/11/bio-statement-about.html
http://www.lightspacetime.com/newsletter/how-to-write-an-effective-artist-biography/
http://emptyeasel.com/2006/12/15/how-to-write-a-good-artist-statement-and-resume/
http://digital-photography-school.com/6-tips-for-writing-an-artist%E2%80%99s-statement