41 Educational services, namely, conducting classes, seminars, conferences, workshops, retreats, camps and field trips in the field of international taxation and distribution of training material in connection therewith; Educational services, namely, conducting classes, seminars, conferences, workshops, retreats, camps and field trips in the field of United States taxation and distribution of training material in connection therewith; Educational services, namely, conducting classes, seminars, conferences, workshops, retreats, camps and field trips in the field of foreign taxation and distribution of training material in connection therewith; Educational services, namely, conducting informal programs in the fields of international taxation, using on-line activities and interactive exhibits, and printable materials distributed therewith; Educational services, namely, conducting informal programs in the fields of United States taxation, using on-line activities and interactive exhibits, and printable materials distributed therewith; Educational services, namely, conducting informal programs in the fields of foreign taxation, using on-line activities and interactive exhibits, and printable materials distributed therewith