copernicus was extremely unpopular with catholics and protestants. his theory. this is said while the theory is almost complete. well, it is just a terrific book. >> it is a terrific book. finally, because we only have about five minutes, in an age where we are making in 500 years the most dramatic shift from the revolution and to plant. if you ever go to germany and recommend you go to this, the gutenberg might seek to cut museum in germany. we are moving into digital. what does that mean? larry and his wife have written books about book collecting and about a passion for books. i will say, and of course i have some self interest in saying this, that of print book is a text file. i mean, and the book. it is a text file. the book has all kinds of other stuff associated with it. >> i agree. back again with a question that i was completely unprepared for. >> unbelievable variety. >> showing brandt. >> i wrote a very interesting paper in fifth grade. nancy and i, my wife back there who can't get in frame try the she might, three funny books on people who collect ra