Here are the authors that appear in the log multiple times:

• John Steinbeck (5 novels, 5 novellas) - avg. rating of 7.6
• Peter Carey (7 novels, 1 novella) - avg. rating of 8.3
• Haruki Murakami (7 novels, 1 novella) - avg. rating of 8.8
• Tim Winton (4 novels) - avg. rating of 9.0
• Graham Swift (4 novels) - avg. rating of 7.3
• Richard Flanagan (4 novels) - avg. rating of 8.4
• Patrick White (2 novels, 1 novella) - avg. rating of 7.2
• David Malouf (2 novels, 1 novella) - avg. rating of 7.0
• George Orwell (2 novels, 1 novella) - avg. rating of 8.0
• Murray Bail (2 novels) - avg. rating of 8.0
• J. M. Coetzee (2 novels) - avg. rating of 6.8
• Michael Ondaatje (1 novel, 1 novella) - avg. rating of 8.5