Some of Bhikkhu Analayo’s books have been published by Windhorse publications (a Triratna-associated UK publisher, which has charity status and needs donations to keep going). They often follow a book sponsorship model (first raise the costs for publishing from sponsors). If I recall correctly, to give an idea on costs, the sponsorship target for the book Satipatthāna Meditation: A Practice Guide was £4,000 (about $4,700 when converted to US dollars).
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