What's the biggest single mistake writers make when querying?

In this lengthy feature, Jordan Tohline analyses the results he gleaned from asking 100 agents the same question – 'What's the biggest single mistake writers make when querying you?'It's worth the 20-30 minutes it'll take to read this, if you're serious about getting a positive reaction when you send your darling off as a sacrifice to the agents. Neglect it at your peril.http://www.jmtohline.com/2010/12/biggest-mistakes-writers-make-when.html