In order to achieve the technical quality required for high-end-printing a huge book like this we have to insist on a certain mode the pictures are submitted:
Adobe RGB or
ECI RGB (profile link)
8 or 16 bit
TIFF (LZW is ok)
JPEG (lowest compression, highest quality)
The book format is approx 50 x 70 cm
(19,68 x 27,55 in), so a picture
on a spread (landscape format) would be approx
100 x 70 cm (39,36 x 27,55 in) max.
A single page picture around 50 x 70 cm.
We are printing fine screening of 80 lines.
Therefore resolution is 406,4 DPI (89,6 MPX).
We know that these technical requirements are not
easy to meet. Please note that this is the top limit.
Basic Limit for the resolution is 24 MPX.