Popular books for piano:

-Bastien Piano Basics: Piano Level 1-4
                                    Theory Level 1-4 and Primer Level
                                    Technic Level 1-4
                                     Performance Level 1-4 and Primer Level
                                    (Old versions also available)

-Bastien theory and technic for the young beginner, primer A and B

-Bastien piano for the young beginner, primer A and B

-A line a day sightreading levels 1-4

-Alfred Beginning piano

-Alfred Basic adult piano and theory books