Dressings

This is the only absolute bible....
And so the voices worked out the title:
Revolutionary.  Latest.  Breakthrough.
Complete and up-to-date.  Revised.  All new.
Basics.  Fundamentals.  Bare essentials—
Written by a grave face with credentials.
The ultimate authoritative guide.
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Art and science of.... Step-by-step how-to.
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A powerful book—good too for your health.
Gives you better sex, success, freedom, wealth.
As usual I've happened to digress:
The subject?  Salad dressings that impress.