Here are the weekly manga & light novels rankings for May 23rd - 29th.

ranks/ this week's sales by copies/ cumulative sales/ titles
Manga
*1, 134,466 *,134,466 Billy Bat vol.6
*2, 120,999 *,121,804 Genshiken Nidaime vol.1
*3, 115,978 *,115,978 Deadman Wonderland vol.10
*4, *82,265 *,*82,265 Mei-chan no Shitsuji vol.15
*5, *68,393 2,767,056 One Piece vol.62
*6, *64,272 *,*67,325 Shinrei Tantei Yakumo vol.5
*7, *61,731 *,*61,948 Boku wa Tomodachi ga Sukunai vol.2
*8, *59,870 *,218,394 Kekkaishi vol.34
*9, *59,441 *,*94,332 Bakaramon vol.4
10, *57,758 *,*57,758 Suzumiya Haruhi no Yuuutsu vol.14

11, *48,191 *,189,606 JoJo's Bizarre Adventure Part 7: Steel Ball Run vol.23
12, *47,398 *,185,879 Ace of Diamond vol.26
13, *44,391 *,*44,391 FIVE vol.15
14, *42,809 *,*42,809 Yumemiru Taiyou vol.9
15, *39,837 *,349,213 Ao no Exorcist vol.1
16, *38,617 *,187,379 Mahou Sensei Negima! vol.34
17, *38,051 *,*38,051 Rozen Maiden vol.5
18, *37,430 *,*66,143 Ikusa no Ko vol.1
19, *36,823 *,*36,823 Battle Angel Alita: Last Order vol.16
20, *36,728 *,*36,728 5-ji kara 9-ji made vol.3

21, *36,509 *,106,199 Gakuen Alice vol.24
22, *36,298 *,*36,298 Gang King vol.21
23, *35,399 *,329,033 Ao no Exorcist vol.2
24, *34,551 *,*35,129 Cooking Papa vol.114
25, *33,649 *,*33,649 Principle vol.1
26, *33,285 *,133,536 History's Strongest Disciple Kenichi vol.43
27, *33,263 *,*47,765 Judge vol.3
28, *31,316 *,142,356 Hayate no Gotoku! vol.28
29, *30,676 *,*30,676 Amagami - Precious Diary vol.3
30, *30,038 *,326,297 Ao no Exorcist vol.3

Light Novels
*1, 341,184 *,341,184 Suzumiya Haruhi Series vol.10 Limited Edition
*2, *82,684 *,*89,440 Boku wa Tomodachi ga Sukunai vol.6
*3, *68,441 *,*69,593 Toshokan Sensou vol.3 Small sized Edition
*4, *55,787 *,*64,448 Boku wa Tomodachi ga Sukunai vol.6 with drama CD
*5, *34,985 *,*39,117 Hentai Oji to Warawamai Neko vol.3
*6, *26,633 *,*26,633 Papa no Iukoto wo Kikinasai! vol.7
*7, *23,071 *,192,690 Toshokan Sensou vol.1 Small sized Edition
*8, *20,884 *,*21,260 Gosicks vol.4
*9, *18,727 2,193,057 Moshidora
10, *16,173 *,*18,264 Kononakani Hitori, Imouto ga Iru! vol.4
11, *16,013 *,*17,760 Seirei Tsukai no Kenbu vol.3
12, *15,110 *,*15,110 Ten to Chi no Moribito vol.1
13, *14,997 *,139,035 Toshokan Sensou vol.2 Small sized Edition
14, *14,953 ,*195,361 Ore no Imouto ga Konnani Kawaii Wake ga Nai vol.8
15, *13,915 *,*13,915 Ten to Chi no Moribito vol.2
16, *13,680 *,*13,680 Ten to Chi no Moribito vol.3
14, *12,734 *,*14,038 Tsuki Tsuki! vol.3
15, *11,903 *,*11,903 Ouran Koi Emaki vol.10

Sources: Oricon Manga Ranking, Oricon Novel Ranking