You can do benefits like this any time.  Several of us always have various eshow benefits going.  Just get approval from the charity or organization you want to benefit, then set up an eshow for them.  I also set up eShows for all the booths that I'm doing that would benefit an organization - if I'm setting up at a multi vendor benefit for Ronald McDonald House, I set it up and give them their own link.  If I'm setting up at an adoption reunion, I set up an eshow benefit for them.  And any time I'm setting up at a school for an evening or during the day, I do the same.

IMPORTANT --> Give them the eshow link so they can promote it by sending the special link to their online email lists of friends/supporters/clients/staff and by printing it in any newsletters or other communications they have. 

Then when the eshow closes, you can have the free books sent to the organization.  Quick & easy!  Or if you'd rather, you can send them a check (15% of the sales perhaps) and you keep the rest of the commission and you get all the free books. 

If it is a local charity, you can also do a live book setup, sell books there & make the eshow into a "combo" eshow to combine with your OrderPro order.