Introduction<br >This is a book about jobs， careers， and vocations. It is de-<br >signed to help you decide what is the best way for you to<br >express yourself through your work. A career is built<br >through the accumulation of specific jobs. Jobs are really the<br >units in a career; whatever their duration， they offer you the<br >opportunity to do specific activities and acquire specific<br >skills. The same job can be used to promote a variety of<br >careers. As you get older， it may be difficult to change<br >careers， but during the first ten years after your graduation<br >from college， you usually have considerable freedom in<br >moving from one field to another. With this freedom， how-<br >ever， there is considerable responsibility--the responsibility<br >to make a decision that might influence your whole future.<br >This book will help you explore the ways you can best use<br >your freedom to make decisions about jobs and careers.<br > In this book， the word vocation is used to describe that<br >