Leave it to California. The New York Times ran a story about Gray Davis signing a bill banning textbooks that exceed a specified weight limit. Assuming that they don’t want to see the books dumbed down (I know, it is a big assumption) the move must be intended in part to get publishers to produce multivolume books. This will have two consquences: 1) the books will be more expensive; 2) the students’ backpacks will likely be even heavier. Why the last: because teachers tend to jump around in textbooks, which will likely require students to carry multiple volumes to each class. Thus, the weight of the books may actually increase. Another fine example of regulatory stupidity.