Garo (ガロ) was a monthly manga anthology magazine in Japan, founded in 1964 by Nagai Katsuichi. It specialized in alternative and avant-garde manga. From its pages, many cornerstones of the industry were produced. Some names you might recognize include Tsuge Yoshiharu, Maruo Suehiro, Hideshi Hino, Yoshihiro Tatsumi, Nekojiru, Nemoto Takashi, Hanawa Kazuichi, Hayashi Seiichi, Sugiura Hinako, Furuya Usamaru, Yamada Murasaki, Ikegami Ryoichi, Shirato Sanpei, Mizuki Shigeru, Sugisaku J Taro, and other artists such as Tsurita Kuniko, Tani Hiroji, Yamada Hanako, Mitsuhashi Otoya, Sasaki Maki, and Shiriagari Kotobuki that you might not recognize.
AX is the spiritual successor, having been started by former artists and editors of Garo after it collapsed due to the death of Nagai Katsuichi and its ever-present financial woes. Notable artists from AX include Nishioka Bro & Sis, Kago Shintaro, Akinoh Kondoh, Moto Hideyasu, Sakabashira Imiri, and Tomozawa Mimiyo, among others.