you might be tempted to pass this little booklet by because it's only 40 pages long, but there is a lot of good information packed into those pages.
If you make herbal incense or are wanting to learn, you should get this book. The author talks about several different ways to make incense and describes the smell of the ingredients.
She does like putting saltpeter in everything, and mentions getting that idea from Wylundt's book of incense (also highly recommended). Saltpeter is not actually needed for a lot of blends, and it can be hard to get, so don't let that keep you from trying them without it.
What I liked about this is that the instructions are very clear. Wylundt's has the necessary information but you really have to hunt it down as it's spread all throughout the book. In this little manual, the author presents concise and straightforward information.
The only downside is that there is just a short list of ingredients and not a bunch of recipes. However, once you learn the techniques you will find that you are just going to go on a spree through your spice cupboard trying out everything, and there are a zillion recipes online, so putting that stuff in this booklet would only make it cost more. Once you get the basics down it's anything goes. Most people who make incense are naturals at experimenting, and the whole process will inspire creativity.
Highly recommended as a companion to Wylundt's book of incense, Carl Neal's Incense Crafting book, and others. On its own, a little scant, but a must have for anyone who likes to make incense.