The old man and the sea. I learned to hate reading because of assigned books in school and this was the one that drove that hatred most. At times in my childhood I enjoyed reading a couple of novels, but assigned books absolutely destroyed any interest I had. Also having religious cult like parents that always had something stupid to say about reading had a major impact.

Bill McKibben's Enough is on my shelf purely so I can flip through it and get mad. A dense little paperback on how technology and progress should just stop. Not even return-with-a-v to some imagined utopia, like Ted Koweveritspelled. Straight-up 'change might be bad, so let stop right here, the moment this book is published.' Pushed with such flimsy arguments that my copy is about half post-it notes, by weight, from the month I read it for a philosophy class. They stop halfway. I just didn't consider rebuttal necessary past a certain point. You don't have to eat the whole turd to know it's not a crabcake.

The Pearl by John Steinbeck. Its technically a novella but still. Hated it.

The book of a thousand nights and a night. Went in knowing it was the original inspiration for Aladdin. Was not prepared for a litany if short stories about sex and racism

Silas Marner has to be the most boring book I've ever attempted to read.

Didn't help that it was an assignment for school, but it also didn't help that it's literally one of the most boringly written books ever.

Art of War in the Middle Ages. Just fucking interminable.

https://www.gutenberg.org/cache/epub/44308/pg44308-images.html

Worst book I've quit is Seveneves by Neal Stephenson. What a horrible book!

Worst I've finished is Grapes of Wrath by John Steinbeck, immediately followed by Of Mice and Men by John Steinbeck. I'll throw in a special mention for The Scarlet Letter and The Great Gatsby. All terrible books that I finished only because they were required reading in school.

The Tarot of the Bohemians.

I tend to quit books if I don't find them very good. One I did finish that I fucking hated was The Girl on the Train. All of the characters were fucking insufferable.