The Bhaktivedanta Book Trust (BBT) is the world's largest publisher of classic Vaishnava texts and contemporary works on the philosophy, theology and culture of Bhakti yoga. Its publications include traditional scriptures translated into 80 languages and books that explain these texts. The BBT also publishes audiobooks and eBooks. BBT titles range in complexity from brief, introductory volumes and summary studies all the way up to exhaustive multi-volume translations.
"The conclusion is that any process of self-realization or God realization other than bhakti-yoga, or devotional service, is extremely difficult. Taking shelter of devotional service to the Lord in full Krishna consciousness is therefore the only way to become free from the contamination of material, conditioned life, especially in this age. Those who are not in Krishna consciousness are simply wasting their time, and they have no tangible proof of spiritual life.." — His Divine Grace A.C. Bhaktivedanta Swami Prabhupada