patrick Cordier who is teaching in the University of Sciences and Technology of Lille France as written an excellent book in wich you can discover "a trip inside the minerals, an extraterrestrial trip (meteorits, moon, mars, comèts, univers) and a trip untill the center of the Earth." The pictures are numerous, colored and very beautiful. Realy, it is amazing. It is written in french only, but very easy to read, even for foreigners who know french language, a little bit. Documents are very interesting for students and profesors and also collectors of minerals who would like to know more