NLP Canada endorsed by John Grinder is 3 Weekends. TORONTO - 3 Weekends July 4 - 6, July 11 - 13 and July 18 - 20, 2003 "The primary difference that Carmen and I detected in doing the last three days of Derek's certification was at the logical level of learning to learn. We were most positively impressed with the people that have gone through the sequence of new code and then touching lightly on portions of classical code by their flexibility and their ability to learn to learn. This of course is the single most important thing you can say about any such course. ... John Grinder" Inspiritive's Master Practitioner Training is 20 days, plus free extra evening sessions and thorough testing.