A PRACTICAL GUIDE IS PROVIDED FOR TRAINERS OF ADVISORY AND EXTENSION WORKERS AND LOCAL LEADERS IN AGRICULTURE AND COMMUNITY DEVELOPMENT IN DEVELOPING NATIONS. BASIC PRINCIPLES OF AGRICULTURAL EXTENSION, COMMUNITY SURVEY PROCEDURES, ELEMENTS OF PROGRAM PLANNING, AND PURPOSES AND METHODS OF PROGRAM EVALUATION ARE DESCRIBED. THEN FOLLOW TWO CHAPTERS ON ADULT LEARNING AND MOTIVATION AND TEACHING METHODS, INCLUDING MASS, GROUP, AND INDIVIDUAL METHODS, AND THE USE OF VISUAL AIDS. FARMERS' ORGANIZATIONS, COOPERATIVE SOCIETIES, AND CLUBS ARE TREATED IN THREE CHAPTERS. THERE IS A CHAPTER ON TRAINING OF JUNIOR EXTENSION WORKERS, BOTH MEN AND WOMEN. APPENDIXES INCLUDE FORMS AND CIRCULARS USED BY THE DEPARTMENT OF AGRICULTURE, SARAWAK--COMMUNITY SURVEY SUMMARY, FARM SURVEY FORM, HANDBOOK FOR FOUR-H CLUBS, AND INSTRUCTIONS FOR CONDUCTING A FOUR-H MEETING. THERE IS A BIBLIOGRAPHY AND INDEX. THE DOCUMENT IS AVAILABLE FROM OXFORD UNIVERSITY PRESS, NEW YORK. 160 PAGES. (LY)