For God's Sake don't buy ANYTHING written by the SHAM (Shamms Mortier) - that's LITERALLY throwing your money away. Back when I was new to Bryce I WASTED money to buy his Bryce book, which was a total piece of pointless SHIT, incredibly BADLY WRITTEN and far far LESS informative than the manual. It's one of the few books I ever actually threw in the garbage (within a week of buying it).