Hi,

Sorry, yes, good idea. The books are currently A4 Portrait. They are perfect bound with a soft 300gsm cover. As far as the spines go, we need to be a little bit flexible. In that the current books which consist of 140, 80, and 180 pages will soon be changed. So right now, I don't have the exact width of the new book (spine), so will need to just do mockup of aprox spine width, and then do final when ready to go to print.

I would think that if we aim for about 150 pages or so we should be fairly right. They are currently about 10 - 20mm thick. However, I am flexible on the spine. We have our own "perfect binding" machine, and so can play around with the adjustments at binding time. We also have a gillotine, and trim them up as we print them. The less spine we have to deal with the better. Ie, if we have a spine that has to be too exact, then we often waste a few cover until we get it exact, but if the spine is not so important, then we have a bit more to play with - if that makes sense. End result .. keep the spine small and subtle, just a simple logo or something not too big and precise.

I hope that helps.