39 Progressive Solos for Classical Guitar by Ben Bolt
nice selection of short pieces (a lot of Carcassi exercises)
music sheets with tabs AND audio!
Pumping Nylon: The Classical Guitarist's Technique Handbook by Scott Tennant
classical guitar technique to the T!!!!
Classical Guitar Method by Matteo Carcassi
great solid exercises
YouTuber Norbert Neunzling playing almost all of the exercises in this Carcassi book (and more)