Monthly ebook revenue increased for the first time in two years. Revenues for book publishers were up by $50.7 million (4.6%) in May 2017 over May 2016. Downloaded audio had another strong month, up 43.4% in May 2017 vs. May 2016 and 32.5% from Jan. – May 2017 vs. the same five months in 2016. Revenue for print books was also up this May, with growth in hardback, paperback, mass market and board books. Read the full article from Good E Reader here.