I have long wished for a Trevor Wye-style set of handbooks for the clarinet (perhaps I should have a go at writing some

). As it is, you're probably looking at a combination of different books by different authors : 50 Classical Studies (Weston), 80 Graded Studies for clarinet book 1 (Davies/Harris), book 1 of the Thurston Passage Studies and the Cambridge Clarinet Tutor (Harris) should make a decent little library.