I've been using the monoclide checklist, and i know its not up to date. But how much are the 'new' books its missing... over 100k? and how can I find out which books these are? Thank you

SubetaLodge also has a checklist possibility, and it's fully up to date. :) You can arrange the subetalodge list per item id, and then look at the newest books, and see how far the monoclide has been updated.

You could always check HotRoxy's book Gallery :) She has all of them.