Length of Book Seven

[Catlady (Rita Prince Winston)]

--- In HPFGU-OTChatter at yahoogroups.com, "Steve" <bboyminn at ...> wrote:
>
> Keep in mind that to keep the book size reasonable they 
> frequently mess with things life font face and type size. 
> Reduction of a single point of font can substantially 
> reduce the size of a large book. Notice how they manage 
> to get those great big hard cover books into those tiny 
> little paperbacks.

That reminds me, does anyone know anything about the rumor that
hardcover books actually cost LESS to manufacture than paperback books?