Book excerpt: The book will serve as a useful design resource and as a practice kit to the agricultural engineering graduates, post graduates in farm power and machinery and for the students appearing for various competitive exams such as ARS, NET, GATE, JRF/SRF etc. The technology & improved designs of farm equipment and technical know how associated with it, is going to the quite useful to establish techno-economic viability for the staff engaged in R&D in farm machinery. This will also be quite useful reference book for the design engineers engaged in design and development of improved machinery in the modern agricultural mechanization. This is the first text book of its kind to address systematically the design prob elms involved in farm machinery. It offers comprehensive coverage of design principles and practices