Dear employer,
I am new to the freelancer website, but I have experience that would help me to do a great job editing your hunting books for spelling errors. I have a degree in Economics, and am currently editing an Economics thesis for someone, outside of freelancer. I am also teaching private English as a second language classes here in Chile, where I live. In both of these jobs, I have to be very conscious of my spelling. I am also an avid reader, and have an expansive vocabulary, so I am confident I could find the spelling errors for you in the books you mention. In addition, I have passed several of the freelancer English tests, with flying colors.
As both of my current jobs are (very) part-time, I am in search of some additional work to help me fill in the gaps. I believe editing your books for spelling errors would be a great beginning for me on this freelancer site, and would provide me with an opportunity to get my foot in the door.
Thanks for your consideration, and I look forward to hearing from you.
Lyndsay