Here is the weekly manga sales ranking for Apr 26th - May 2nd.

*1, 618,737 *,618,737 Naruto vol.51
*2, 535,132 *,535,132 Nodame Cantabile vol.24
*3, 269,353 *,269,353 Katekyo Hitman Reborn! vol.29
*4, 255,557 1,080,859 Fullmetal Alchemist vol.25
*5, 223,675 *,223,675 Gintama vol.34
*6, 182,267 *,182,267 Bakuman vol.8
*7, 158,037 *,375,734 Ookiku Furikabutte vol.14
*8, 143,266 *,313,019 xxxHOLiC vol.17
*9, 134,197 *,134,197 New Prince of Tennis vol.3
10, 104,155 *,187,623 Saki vol.7

11, *96,436 *,*96,436 Toriko vol.9
12, *91,599 *,*91,599 Mayoi Neko Overrun! vol.1
13, *89,642 *,*90,116 Bokutachi wa Shitte Shimatta vol.9
14, *76,602 *,135,127 Arakawa Under the Bridge vol.10
15, *73,758 *,153,655 Mei-chan no Shitsuji vol.12
16, *69,778 *,*69,778 Faster than a Kiss vol.7
17, *61,609 *,117,715 Clover vol.23
18, *60,298 *,*60,298 Gunslinger Girl vol.12
19, *57,838 *,*57,838 Yu-Gi-Oh! GX vol.7
20, *54,873 *,143,611 Giant Killing vol.14

21, *51,406 *,*51,406 Psyren vol.11
22, *51,130 *,*51,130 Jin vol.18
23, *48,908 *,*48,908 Shin Say Hello to Black Jack vol.8
24, *48,704 *,*59,424 Nodame Cantabile vol.24 with DVD & CD
25, *45,167 *,*94,932 Kiyoku Yawaku vol.12
26, *44,130 *,*44,130 Yu-Gi-Oh! 5D's vol.1
27, *42,103 *,109,832 The Melancholy of Haruhi Suzumiya vol.11
28, *36,294 *,262,670 Ahiru no Sora vol.27
29, *34,773 *,*99,140 Higurashi no Naku Koro ni Kai Minagoroshi-hen vol.5
30, *33,561 *,*79,374 Yozakura Quartet vol.8

Source: Oricon Manga Ranking

Weekly Light Novel Ranking for Apr 26 - May 2
*1, 85,880 *85,880 Katekyo Hitman Reborn! Hidden Bullet vol.4
*2, 33,356,108,482 Tenchi Meisatsu
*3, 25,645 *25,645 Bungaku Shoujo Side Stories vol.3
*4, 21,516 *21,516 Hakushaku to Yousei Short Stories vol.4
*5, 11,627 *58,235 Chrome Shelled Regios vol.15
*6, 10,982 *10,982 Takumi-kun series Akatsuki wo Matsumade
*7, *9,941 **9,941 Kyuai Trap
*8, *9,685 **9,685 Dantalian no Shoka
*9, *9,680 **9,680 Mushi-Uta vol.10
10, *9,186 **9,186 Tokyo Kotei☆Hojo Renka vol.5
11, *9,147 *15,576 Oran Koi Emaki Enrai
12, *9,119 **9,119 Toho Yoyuki vol.3
13, *9,015 217,874 Durarara!! vol.1

Source: Oricon Novel Ranking