How to Know When It's Time to Quit a Book, According to Avid Readers

"Depends, [I'll give] really bad writing maybe one to two chapters. Unlikable characters, bad plot, [I'll give] 50-100 pages. I often come back to books, especially if I own them. I finally gave Les Miserables away after owning if for about 20 years and never getting to chapter four." — Audrea