So, you want to level a warlock, huh? Well, I'm not going to tell you how to do it. No sir! If you've come here thinking that Blood Pact is going to give you a step-by-step plan of what you should do to get your warlock from level 10 to 40 -- some kind of list of quests, zones, instances and mobs -- then you're deluded mister; we don't do that here. What you need is a generic leveling guide of the sort you can find all over the internet. Seriously, don't pay for one though; you can get plenty of decent guides for free. Personally I use Tour Guide and Carbonite. They work really well together and make the whole process much faster. There are other tools, but I know these are good.
What Blood Pact is going to do is talk about what warlocks going through these levels are all about. It's not going to be hugely detailed at any one level because, frankly, you won't be at any level for long. We'll look at the new spells you will gain and how you can apply them, we'll have a gander at these talent things you can now play with, and we'll talk about the gear you will be wearing and wielding on the way. So send the imp off to make a fresh brew and settle in for some lock leveling.