open the treasure house of your desires.

_This universal master key that fits all locks now between you and
success can be made by your own hands and head. You have begun to shape
it for your future use._




_How to Study Certain Success with The Selling Process_


[Sidenote: Suggestion To Salesmen]

The professional salesman or saleswoman who undertakes the thorough
study of both this book and its companion volume, might better read
first "The Selling Process," the chapters of which apply especially to
his or her vocation.

If you are a "salesman," therefore, begin your study with the
introduction to that book. When you have read "The Selling Process"
once, start "Certain Success" and master it. Then re-read the other book
in the light of the new ideas that will have been shed upon its contents
by the present text.

The practical value of "Certain Success" and "The Selling Process" to
you as a salesman will be multiplied a hundredfold if both are kept
handy for _continual reference_. The marginal index should enable you to
find quickly any point regarding which you want to refresh your
recollection. This set of books was not written to collect dust on a