Different NLP developers and authors describe different sets of Meta Programs, sometimes with considerable overlap, sometimes with specific contextual purposes, and sometimes with great originality. It has been said that Leslie Cameron-Bandler identified as many as 60. L. Michael Hall describes 51 in his book, "Figuring Out People." And others describe other sets.

It seems reasonable to expect that more Meta Programs will be identified and described in the future. At some point, it is hoped, a refinement, reorganization and/or consolidation of some of those already identified will be undertaken. But as yet, to my knowledge, much of this work remains to be done in the overall field of NLP