The Growth in IP Statutes
Landes and Posner's slim volume on the political economy of IP law is worth a read, and at under thirty pages, it's not that much of a time commitment. Among the many gems inside it is this graphic on the growth of U.S. IP statutes (in terms of words and pages):
Admittedly, this a crude measure of statutory growth. Still, as of 2000, copyright was leading with patent law second and trademark law third. (Both patent and TM lagged growth in the U.S. Code generally.)
The AEI has a PDF version of the book here.
