Since this has been on the daily update forever...

Pamphlets and security pamphlets are fine. Books are the issue, due to bookshelves available from the carpentry factory at 1/4 leather per book and craft duping, which uses no charcoal and no plates are needed, and LESS ink (!) for large books.

The leather and paper costs are already reasonable at the factory, those can just be carried over as unit prices to the press. And quills are already not used in the press. The lower cost then, is ink.

I propose setting ink at 4 books per ink, flat rate. And the paper and leather become a flat unit cost, not per page. So it would be, in total, 4 paper, 1 leather, 1 ink for every 4 books (mini-batches), and the same charcoal usage scheme as currently, for unit costs.

This is significantly, but not insanely cheaper than craft duping. For individual dupes, crafting is still cheaper (due to plates and charcoal for the press), even making the book yourself. For small runs (4-8 books or enough to make reserves for a library, etc.), the cost of the plates and charcoal makes it about 1/2 the price of duping. And for very large production runs, it approaches about 1/4 cost of duping from scratch. And about 1/3 the cost of carpentry books craft duping.

That seems like appropriate incentive to me to use the factory for books much of the time but not in all situations.

I'd also suggest halving the price of gold for plate setting, but gold's pretty cheap, not a big deal.