History of haiku.
10 classics by Ryu Yotsuya (Japan)
Collections.
Kobayashi Issa (1763-1827)
Issa by David G. Lanoue (many hundreds haiku translated in English, with a search engine. An exceptional place to discover Issa)
Basho (1644-1694): Narrow Rod to the North
http://en.wikisource.org/wiki/Complete_Basho_Haiku_in_Japanese . Basho's haiku. (Japanese).
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