Help me find a famous book — features a spider with a human face that manipulates a young girl

I'm trying to remember the name of a very famous book I came across a while ago. What I recall:

There's a spider-like creature, possibly with a human face, on the book cover.

This spider manipulates a young girl into doing bad/naughty things

The spider's name is memorable, and people sometimes use it as a reference when describing someone who leads others to do bad things, like a metaphor for a manipulative person.

Any ideas? Thanks in advance!