I bought myself a book as a present. <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" /> <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" /> it's called "Sprechende Steine" ("telling stones" or so) and is about the letters of the Maya. Very interesting ! The german-language book is actually a translation of an italian book with the title "Scrittura Maya".
In the Fourier Verlag (the publisher) there are several books of this sort, one about egyptian letters as well.