Book => drop&drag with your mouse <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />

Medic book => UNDER the left haystack in the starting level, where the spiders are.

http://www.kiya1.de/beyond/act1screens/Act1Poisonbook0.jpg

See? Zoom, if you can't see it <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />