Here is the weekly manga sales ranking for October 12th - 18th.

*1, 160,433 160,433 Hayate The Combat Butler! vol.21
*2, *87,125 *87,125 Kindaichi Shounen no Jikenbo Kenmochi Keibu no Satsujin vol.1
*3, *86,683 *86,683 Kindaichi Shounen no Jikenbo Kenmochi Keibu no Satsujin vol.2
*4, *81,056 *81,056 Hotaru no Hikari vol.15
*5, *64,742 665,630 Bleach vol.41
*6, *62,525 *62,525 GTO: Shonan 14 Days vol.1
*7, *61,347 *61,347 Dear Boys Act III vol.2
*8, *59,807 156,670 Lucky ☆ Star vol.7
*9, *59,181 *59,181 Otoyomegatari vol.1
10, *58,274 *58,274 Tonari no Kaibutsukun vol.3

11, *55,503 *55,503 Costume Play ★ Animal vol.12
12, *53,957 *53,957 The World God Only Knows vol.6
13, *53,266 455,276 Katekyo Hitman Reborn! vol.26
14, *51,223 *51,223 Kinkyori Renai vol.5
15, *50,888 *50,888 Kyoukai no RINNE vol.1
16, *46,601 *46,601 Kyoukai no RINNE vol.2
17, *46,017 *46,017 Ocha ni Gosu. vol.11
18, *40,938 *40,938 Seito Shokun! Teacher Chapter vol.19
19, *38,782 *98,779 Drop vol.8
20, *35,304 *35,304 Tonari no Atashi vol.2

21, *34,327 *34,327 Code:Breaker vol.7
22, *30,896 *99,115 Hanma Baki vol.20
23, *29,342 *57,749 Gifu Dodo!! Naoe Kanetsugu vol.4
24, *26,440 *26,440 Yankee-kun to Megane-chan vol.14
25, *25,643 *25,643 Q.E.D. Shomei Shuryo vol.34
26, *24,734 *83,360 Tobaku Datenroku Kaiji Kazuya-hen vol.1
27, *23,706 *23.706 Alive vol.19
28, *22,133 206,279 Eyeshield 21 vol.37
29, *21,959 179,648 Toriko vol.6
30, *21,923 *49,441 Touhou Bougetsushou ~ Silent Sinner in Blue vol.3

Source: Oricon Manga Ranking
the last week's ranking: Japan's Weekly Manga Ranking for Oct 5 - 11

Weekly Light Novel Ranking for Oct 12 - 18
*1, 30,160 79,527 Kino no Tabi: the Beautiful World vol.13
*2, 22,435 45,709 Guin Saga vol.129
*3, 15,157 15,157 Shinzo ga Fukaku Hazeteiru
*4, 11,220 11,220 Shinigami Hime no Saikon
*5, 10,789 13,654 Kuchibiru ni Cho no Hone
*6, 10,048 45,687 Accel World vol.3
*7, *9,906 *9,906 Haiyore! Nyaruko-san vol.3

Source: Oricon Novel Ranking