I am very pleased that you have taken over responsibility for our ISKCON books mail-order department. I consider it one of the most important posts in our Society, so you must be very diligent to perform very nicely this immense work. I especially want that my books and literatures should be distributed profusely, but so far I understand this is not being done very perfectly. So I want that you all my students shall very vigorously try for this book distribution. Do not hesitate to use your American and European brains to increase, that is Krishna's special gift to you, now use it. Any activity which will please Krishna should be accepted favorably, this is our guiding principle.
Letter to Kirtiraja das, 27 November, 1971