Vyasa-puja is an annual celebration by devotees of Krishna to offer homage to their guru, or spiritual teacher. Krishna says, "one who claims to be My devotee is not so. Only a person who claims to be the devotee of My devotee is actually My devotee." In the system of bhakti-yoga, the first duty is to accept a devotee as spiritual master and then to render service unto him.
Each year, the Bhaktivedanta Book Trust publishes a limited number of copies of a Vyasa-puja book—a collection of homages to Srila Prabhupada from devotees and temples all over the world. Srila Prabhupada's unique position as the founder-acharya of the International Society for Krishna Consciousness (ISKCON) is significant in numerous ways. Essentially, he is the instructing spiritual master for everyone within ISKCON.
These books are available below, as .pdf documents for free download:ac-bhaktivedanta-swami-prabhupada ] [ vyasa-puja ]