The publishing industry has expanded in the past three years as Americans increasingly turned to e-books and juvenile and adult fiction, according to a new survey of thousands of publishers, retailers and distributors that challenges the doom and gloom that tends to dominate discussions of the industry’s health.

BookStats, a comprehensive survey conducted by two major trade groups that was released early Tuesday, revealed that in 2010 publishers generated net revenue of $27.9 billion, a 5.6 percent increase over 2008. Publishers sold 2.57 billion books in all formats in 2010, a 4.1 percent increase since 2008.

The Association of American Publishers and the Book Industry Study Group collaborated on the report and collected data from 1,963 publishers, including the six largest trade publishers. The survey encompassed five major categories of books: trade, K-12 school, higher education, professional and scholarly.

“We’re seeing a resurgence, and we’re seeing it across all markets — trade, academic, professional,” said Tina Jordan, the vice president of the Association of American Publishers. “In each category we’re seeing growth. The printed word is alive and well whether it takes a paper delivery or digital delivery.”