@oantolin And Dover Editions! "This is a permanent book".

Just picked one off the shelf -- Introduction to Graph Theory -- it falls open about 3/4 of the way through where the four-color theorem is introduced.

*I've* never gotten that far in that book. Treats in store!

@clew @oantolin

Are you referring to _Introduction to Graph Theory_ by Richard J. Trudeau (https://store.doverpublications.com/products/9780486318660)? If so, do you recommend it?

I've been wanting to learn graph theory for a while, and this seems like it could be a good place to start.

No, I have _ Introduction to Graph Theory_ by Chartrand. And as I say I’ve never gotten all the way through.

Originally titled _ Graphs as Mathematical Models_ and it’s built mostly on applied problems. Formalize set theory is all in an appendix (with problem sets).

@aphedges @oantolin

@clew

Thanks for the pointer. Maybe I'll look into one of them?