I'd also recommend his collection of short stories (Exile and the Kingdom), though I suppose it would depend on the translation - much of the depth of Camus is in the poetic and carefully chosen words. He's technically a very interesting writer, and I think his stories capture a certain existential ache that everyone feels at some point in their life, observing how absurd and cruel the world can be without trying to offer answers. Not really sure they should be set as school texts though, as it ruins them for a lot of people.