The tutorials presented hereafter are only for instruction purposes.

While the instructions given herein are valid and efficient, there are newer methods more practical and much more rapid in performance. These methods developed and refined over the years, are taught in our workshops.

Please refer to the section on Courses for additional details on the various workshops proposed.

We cannot take responsibility for the reader's learning capabilities or for his understanding of the subject, for these tutorials are not supposed to replace a formal and appropriate training.

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