According to the Book Industry Study Group's (BISG) recently released Book Industry Trends 2004, annual consumer expenditures for books will reach $44 billion by 2008. Trade, mass market, and professional publishing revenues will increase by roughly 10 percent by 2008, with revenue growth higher for university press and college publishers, but the most significant growth will be in the el-hi and standardized-test segments of the industry, with respective increases of more than 20 and 45 percent.