ðə bˈʊk kənsˈɪsts ʌv tˈuːhˈʌndɹɪd ˈeɪt ʃˈɔːɹt ᵻpˈɪsəlz ɔnðə fɪlˈɑːsəfi ʌv ðəlˈɛmə, kɹˈoʊliz ˈoʊn ˈɛθɪkəl sˈɪstəm ʌv əkˈʌlt mˈædʒɪk.
The book consists of 208 short epistles on the philosophy of Thelema, Crowley's own ethical system of occult magic.