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Re:The J Programming Language [video] by bgilroy26 on Sunday March 30, 2014 @10:25PM (#7499188)
Dadgum has a great review of a J programming book here:

http://prog21.dadgum.com/19.html

Re:The J Programming Language [video] by aethertron on Monday March 31, 2014 @10:58AM (#7501819)