Top 30 Best Selling Series in 2015
01. One Piece (14,102,521)
02. Nanatsu no Taizai (10,304,112)
03. Shingeki no Kyojin (8,778,048)
04. Ansatsu Kyoushitsu (8,605,861)
05. Kingdom (8,569,215)
06. Haikyuu!! (6,531,508)
07. Shokugeki no Souma (4,321,830)
08. Terra Formars (4,188,158)
09. Kangoku Gakuen (4,058,119)
10. Tokyo Ghoul:re (3,758,541)
11. One Punch-man (3,689,013)
12. Ao Haru Ride (3,638,637)
13. Tokyo Ghoul (3,576,177)
14. Naruto (3,498,177)
15. Fairy Tail (3,472,121)
16. Yowamushi Pedal (3,355,844)
17. Nisekoi (3,199,971)
18. Daiya no Ace (2,940,024)
19. Owari no Seraph (2,850,718)
20. Magi (2,820,526)
21. Bleach (2,818,926)
22. World Trigger (2,735,269)
23. Gintama (2,642,690)
24. Orange (2,321,095)
25. Metantei Conan (2,308,421)
26. Ore Monogatari!! (2,304,674)
27. Boku no Hero Academia (2,190,845)
28. Hoozuki no Reitetsu (2,148,504)
29. 3-Gatsu no Lion (1,979,421)
30. Kuroshitsuji (1,957,229)
best selling volums
01) One Piece #76 (3 185 018)
02) One Piece #77 (3 020 137)
03) One Piece #78 (2 977 466)
04) One Piece #79 (2 810 583)
05)Attack on titan #15 (2 000 137)
06) Attack on titan #16 (1 920 780)
07) Attack on titan #17 (1 807 155)
08) Naruto #72 (1 324 693)
09) Tokyo Ghoul:re #01 (1 017 871)
10) Assassination Classroom #12 (1 012 500)
The longetivity of one piece
Bleach fell a long time ago Im not surprised, but yet I'm still reading it 
but slay taizai... the fact that the AOT couldnt beat it and fall to 3 
