Following an extraordinary jump in June in the children's hardcover segment, sales in the category had another solid performance in July, increasing 73.9%, according to preliminary estimates from the AAP. The gain in the segment was led by sales of Harry Potter and the Order of the Phoenix , which, much like June, also helped to boost audio sales, which increased 91.3% in the month. The Phoenix halo effect did not carry over to children's paperback, however, and sales were off 25.5% in the month. The adult hardcover category, helped by a decline in returns, had an extremely good July, with sales up 40.2%. Trade paperback sales rose 21.3%. Sales were down in the elhi segment, falling 2.8%. The decline was mainly due to a 9% drop in basal sales to non-adoption states. Sales of supplementary materials rose 15.3%.
| % Change | % Change | |
| Category | July | YTD |
| Adult Hardcover | 40.2 | 11.5 |
| Adult Paperback | 21.3 | -5.2 |
| Adult Mass Market | -15.7 | 3.0 |
| Juvenile Hardcover | 73.9 | 68.1 |
| Juvenile Paperback | -25.5 | -5.5 |
| Audio Books | 91.3 | 24.7 |
| Electronic Books | 200.0 | 190.0 |
| Religious Books | 32.9 | 26.4 |
| Higher Education | 7.9 | 3.2 |
| Univ. Pr. Hardcover | 38.7 | 15.4 |
| Univ. Pr. Paperback | 12.1 | 9.6 |
| Professional | 15.3 | -5.9 |
| Elhi | -2.8 | 2.9 |
| (Measured in $ sales against same time periods, 2002) | ||



