I finished book #18 today. James Gleick's The Information. Quite entertaining. A couple of dull chapters, but overall well reading.
Only three more decades left to finish one of my challenges for this year pre-19th, 1930s, and 1950s. Only nine more letters left as well.
Way, way, way ahead of schedule having read almost 5,000 pages now. 36% of 50 books and it's only the second week of March now.