The first four books in Robert Caro's epic biography series The Years of Lyndon Johnson were published in 1982, 1990, 2002, and 2012. Caro also published an autobiography, Working, in 2019.
Caro has given some progress updates over the years about the fifth LBJ volume. For instance, he said in 2020 that he had completed 604 pages. He's also said that his planned trip to Vietnam was cancelled due to the pandemic, and is still planning to go.
Caro was born in 1935 and is currently 87, but I haven't seen any negative news stories about his health.
This market resolves when Caro/his publisher/etc officially announces a publication date - I won't wait for the actual publication. YES if a date in 2023 or 2024 is announced, NO otherwise (including if a 2025 date is announced).
More background: https://en.wikipedia.org/wiki/The_Years_of_Lyndon_Johnson#Book_Five, https://apnews.com/article/robert-caro-lbj-60e2a56d90e96caaf001862e49e3c673
General policy for my markets: In the rare event of a conflict between my resolution criteria and the agreed-upon common-sense spirit of the market, I may resolve it according to the market's spirit or N/A, probably after discussion.