Reese's Book Club

Reese's Book Club names 19 books, every one listed here. The most approachable of them is The Midnight Library by Matt Haig (difficulty 27/100, about 3.7 hours); the hardest is Intermezzo by Sally Rooney (67/100).

Questions

How many books are on Reese's Book Club?
19, all of them listed here with how hard each is to read and how long it takes.
Which book on Reese's Book Club is the easiest to read?
The Midnight Library by Matt Haig, difficulty 27/100, about 3.7 hours. The hardest is Intermezzo by Sally Rooney, at 67/100.
How long would it take to read every book on Reese's Book Club?
About 140 hours for the 19 books ReadingRate measures, at 250 words a minute adjusted for each book's difficulty: 70 days at two hours a day.

Other lists: Oprah's Book Club. All lists.