Graded Keyboard Musicianship provides graded and integrated exercises for developing five core skills at the keyboard: figured bass, score-reading, transposition, harmonization, and improvisation. Book 1 assumes keyboard ability of Grade 1 ABRSM standard and covers up to Grade 5, while Book 2 covers Grades 6 to 8.
This is an excellent two-volume curriculum that you can do alone or with a teacher. Logicvally organized, short lessons gently move from beginner to intermediate level, which is where most keyboard skills books start. The authors have kept the examples short, without omitting any steps. I highly recommend these new volumes for anyone seeking help in boosting their command of these keyboard basics.