The Complete Book of Incense, Oils and Brews Author Scott Cunningham
New, softcover book.
The Complete Book of Incense, Oils & Brews is, in effect, a magical cookbook. Like any cookbook, it teaches, allows plenty of latitude for experimentation and personalization, and gives a large number and wide variety of recipes. These are not the same old tired recipes printed time and again in a host of magical formularies. They are tried and true ones gleaned by Cunningham from a variety of sources over many active years of practice.
One of the secrets of real magic is that it is controlled by the mind. The more things in your ritual to help your mind associate with your goal, the more powerful your ritual may be. Colored candles, scented oils, natural incenses, and more all add to the impact of the magic you wish to do. But how do you know which incense to burn? Is it possible to add scented oils together to get a more powerful oil? And how do you make your own appropriately-scented tools? 
The answers to questions like these and hundreds more can be found in The Complete Book of Incense, Oils and Brews by world-famous author Scott Cunningham. This is a greatly expanded and rewritten version of The Magic of Incenses, Oils and Brews. It includes over 100 new formulas, proportions for each element of the recipes (the most requested feature from his previous book), how to substitute ingredients, and much more. Besides the formulas, it also includes the exact methods of making all of these scented tools, including how to extract the essences from the herbs. 
This compendium of magical lore is a vital tool for every magical person on any magical path, whether you are a beginner or an expert.