Lots of questions here, Ella.
Do you know anything about this person or what she is producing...EXACTLY?
Is this publication of mutual interest? I assume so since you have photos she is interested in?
Are they personal photos (never give personal pictures of yourself, period, or other people without their consent in writing)...business related...technical? Do you have rights to the photos, i.e. did you take them?
What is the end product going to be...not for profit, profit, in-house organization use?
Given all these questions, I suppose you could give photos you have rights to out of the goodness of your heart if you want. But if it is going to be for a saleable product, asking for freebies is kind of nervy IMHO. At minimum you should get credits.
Botton line is...BEWARE...find out as much as you can before making a decision to send pictures.
I'm sure others will have concerns about this also.
Old Bill