Here are the weekly manga & light novels sales rankings for February 14th - 20th.

Manga
*1, 275,593 *,275,593 Fairy Tail vol.25
*2, 262,116 *,262,116 Detective Conan vol.71
*3, 184,587 *,184,587 Ahiru no Sora vol.30
*4, 152,538 2,724,241 One Piece vol.61
*5, 129,019 *,129,019 Mahou Sensei Negima! vol.33
*6, 126,442 *,126,442 Skip Beat! vol.27
*7, 114,542 *,114,542 Kekkaishi vol.33
*8, 101,288 *,101,288 GTO: Shonan 14 Days vol.6
*9, *73,240 *,*73,240 Hayate no Gotoku! vol.27
10, *71,312 *,*71,312 Area no Kishi vol.24

11, *67,972 *,*67,972 Dear Boys Act III vol.6
12, *64,078 *,*64,078 Hayate no Gotoku! vol.27 Limited Edition with a school calender
13, *53,119 *,*53,119 Kingdom vol.21
14, *49,160 *,*49,160 Sayonara Zetsubou Sensei vol.24
15, *41,382 *,*41,382 Otomen vol.12
16, *40,133 *,*40,133 Pumpkin Scissors vol.14
17, *38,880 *,*38,880 Eden no Ori vol.11
18, *37,161 *,*37,161 Zettai Karen Children vol.25
19, *36,773 *,362,481 Gintama vol.38
20, *33,308 *,*95,073 7Seeds vol.19

21, *32,687 *,*32,687 Q.E.D. Shomei Shuryo vol.38
22, *29,861 *,*76,349 Kinkyori Renai vol.9
23, *27,372 2,900,722 One Piece vol.60
24, *25,408 *,*25,408 Monochrome Factor vol.10
25, *24,540 *,*24,540 CMB vol.16
26, *24,192 *,*24,192 Issho ni Neyouyo vol.4
27, *23,963 *,*23,963 Hanagata vol.22
28, *23,759 *,*23,759 Zettai Karen Children vol.25 Limited Edition with a school calender
29, *23,579 *,194,269 Kaichou wa Maid-sama! vol.12
30, *23,415 *,*23,415 Crash! vol.9

Light Novels
*1, 31,253 *,116,126 Durarara!! vol.9
*2, 28,399 *,*28,399 Seitokai Series Spinoffs vol.4
*3, 25,974 1,822,752 Moshidora
*4, 13,347 *,*53,187 Spice and Wolf vol.16
*5, 12,840 *,*13,005 Prism no Hitomi
*6, 12,593 *,130,977 IS: Infinite Stratos vol.2
*7, 12,371 *,135,958 IS: Infinite Stratos vol.1
*8, 12,320 *,*53,801 Accel World vol.7
*9, 12,286 *,*12,286 Jinrui wa Suitai Shimashita vol.6
10, 11,913 *,125,512 IS: Infinite Stratos vol.3
11, 11,700 *,113,203 IS: Infinite Stratos vol.6
12, 11,392 *,121,921 IS: Infinite Stratos vol.4
13, 11,114 *,190,114 Baka to Test to Shoukanjuu vol.9
14, 11,081 *,120,476 IS: Infinite Stratos vol.5
15, 10,258 *,*16,838 Oda Nobuna no Yabo vol.5
16, *8,988 *,**8,988 Shinigami Hime no Saikon vol.10
17, *8,479 *,**8,479 Tenchi Muyo! GXP vol.7

Sources: Oricon Manga Ranking, Oricon Novel Ranking