Published in 1970 by Srila Prabhupada's ISKCON Press, The Krsna Consciousness Handbook is now available as a free 116-page PDF document, which you can download here. As described in the Introduction:
"This is the first annual edition of The Krsna Consciousness Handbook. The International Society for Krishna Consciousness (ISKCON) was founded in 1966 by His Divine Grace A.C. Bhaktivedanta Swami Prabhupada and is now becoming firmly established, with centers in thirty major cities around the world and world headquarters in Los Angeles, California. The goal of the Society's members is to attain love of God by following the principles of bhakti-yoga, as taught by the Vedic scriptures and the disciplic succession of spiritual masters, and to spread love of God to all people through the process of sankirtana (public chanting of the holy names of God). Another important goal of the Society is to present authoritative literature on the science of God in English and other major languages.
The purpose of this handbook is to show interested persons the full scope of ISKCON's activities. ISKCON is not concerned with accumulating financial assets, but aims at producing men and women of sublime character. This is possible only by plain living and high thinking based on the principles of devotional service to the Supreme Lord.
Sincere souls everywhere are taking to this genuine movement of God realization. As is stated in the Bhagavad-gita, "This knowledge is the king of education, the most secret of all secrets. It is the purest knowledge, and because it gives direct perception of the self by realization, it is the perfection of religion. It is everlasting, and it is joyfully performed."
The Handbook's Table of Contents lists the following topics:
A Brief History of ISKCON
Teachings of ISKCON
Brief Biography of the Spiritual Master Parampara (Disciplic Succession)
Ministers for Krsna Consciousness – Qualifications, Activities, Duties, and Personal Code
The Qualifications and Curriculum of the Divinity Student
Qualifications of a Devotee
Principles of Devotional Service
Preface to Krsna, the Supreme Personality of Godhead
On Chanting the Hare Krsna Mantra
Books by A. C. Bhaktivedanta Swami
Calendar for 484 of the Caitanya Era
Procedure for Performing A Krsna Conscious Marriage
Recognition of ISKCON