the weekly practices and materials of the courses are also given in the books, so it would be very handy to have the books.
yes, 'peace of the spirit within' is for self discovery course
'when i go to sleep' is the newer version of ' a course in astral travel & dream'. i got both of them, normally if i want to refer/study back, i would check on the newer version.
highly recommended to get the books, as it contains lots of materials and insight to the teaching

You can do the courses without the books, so they're not 'required', but I would definitely recommend getting them anyway - then you will have the written teachings as Master Belzebuub gave them and all the information and practices handy when you need it. I wouldn't want to be without mine :-)

The Peace of the Spirit Within accompanies the Self-Discovery course, that's right.

Both the astral books are very good and contain mostly the same material, though When I Go to Sleep is the revised edition. I would suggest getting that one, if you had to choose, if only because the dream symbols dictionary has been expanded. The dream symbol guide is, as far as I can tell, not given in the online course.

Liz

I agree, the books are well worth getting.

I did the self discovery course without the book, but when I did get it I found that so much more was explained. Also, when I was still new to these teachings some of the things which I could verify in the dream guide (in the astral book) gave me confidence that there was some truth to what was being taught.

Yeah Grab the books if you can! Highly recommended!
Belzebuub explains everything from the courses in such a direct and simple way that it goes directly to your consciousness. Soul food in its purest form:) And it great for reference too!

Thanks for the responses everyone. I'm going to try to see if I can find any of the books at my local book stores. If not i'll order them online. :)

They did not have the book at my local retailer. So I ordered the 2 books directly from the publisher because Amazon.com said one of them was out of stock.

Has anyone else ordered from Absolute Publishing?

Another weird thing to note, the woman trying to help me find the books made a comment like "Oh you better be careful with this, the author's name means Satan." I didn't know how to respond to that. So I just said I will be careful. 0_o

Hi astraldreamer

Yes, I ordered from Absolute publishing, I sent the order per mail and had the books around 3 weeks later (overseas).

In Samael's books Satan is referred to as a psychological aspect of us, not to as an external person.
See hell,devil, karma for example:
http://www.gnosticweb.com/last-books-of-samael-aun-weor

All the best
jonny

Thank you jonny, I will take a look at that.