There’s an master “Absolute Beginner Book Club” thread, which just holds information about the book club as a whole. That thread is at Absolute Beginners Book Club // Now reading: Hunter × Hunter
Then there’s an individual thread for each book that is read, both current and past. This is the thread for the current one. The other ones (for past clubs) are linked in the master thread.
There are also individual weekly threads. This current club has them, though past ones did not. The current one is しろくまカフェ: Week 2 Discussion (Chapters 3 and 4), for chapters 3 and 4, though a new thread should be going up soon for this next week, for chapters 5 and 6.