You can have as many muller lights you want, providing they are the free ones & not the layered ones!
I think they are bringing out a new extra easy book - but you know it would be cheaper joining a club (there are a lot of half price offers on at the minute!) and getting your pack, staying for the explanation talk the first night and after that if you want to go it alone you'll be prepared (Hopefully there's a club near you)
I've seen some of the books going for £10 & more then by the time you pay postage etc... it works out expensive! So if you join it would be £10 at most (If you can't find any half price offers!) & you get all the books & all the explanations!!
Come & join us here and read all about SW & get some support & encouragement