Stealth guide help

[gillgee]

Hi there I've gained a lot knowledge browsing this forum and internet but I need the guide to fill in blanks ,is the guide $20 only or a monthly subscription? If I go to buy the guide is it only a 1 time fee?
Thanks

[Play]

I'm not 100% sure myself, I purchased it back when it was a one time fee. However I don't think you have to stick to the monthly subscription, you may be able to cancel the subscription after having read it. Though IMO it's nice to keep as reference in case you ever need to go back to it.

I myself have gone back and read the original a few times, just to make sure I'm on the ball and not making any mistakes.