I agree you shouldn't "believe everything you read from the internet." either.
HOWEVER, (I didnt read the guide either yet) someone out there supplies free information and that is what the internet is about (Yes, he/she wants to make money out of it obviously). But that doesn't have to be bad. They have obviously spent time creating a PDF and a real company behind.
Of course, in order to get started, you should first gather information, then test it and then continue with small amounts of money and learning from the mistakes and as time goes by you will be more experienced.
On the other, both of you are right, but you should always avoid the wrong information, because false information means false analysis.