In reply to Dan.

Hi Dan,
Thanks for the comments and suggestions. I'm not opposed to adding features to Booko on request - but this one may be difficult. Booko actually passes the search query through to the Amazons and two other online book stores for searches, then merges the results. So, all 4 sites that are searched would have to support the search syntax - ie "AND" and "OR".

I'll keep it mind though. The first step would be to check all sites to see if they'd support such syntax.