I have completed three of the six lessons of the Master Craftsman-I program. The course costs $35.00 and includes the Scottish Rite Ritual Monitor & Guide, by Arturo De Hoyos. This book alone is priced at $65.00. If you've ever tried to read Albert Pike's Morals & Dogma, you will appreciate the Monitor & Guide because it makes the material very accessible. The correspondence course is well thought out and very useful, particularly if you intend on going to SR meetings, hearing the monthly symbolism lectures and attending the reunions. The degrees are filled with very esoteric symbolism, so studying them makes the SR experience more meaningful.