Resumes

I'm working on my resume and not enjoying it at all. How does one convey that you are knowledgeable about something even if you don't know it all? Writing down my skills and qualifications always makes me feel as if I am over-stating myself. I hate these types of grey areas, especially in such a changing field as libraries where technology keeps leaping forward like Hagrid's skrewts.

I just want to say: here I am. I do a good job because I am always learning.