How about a short preface to the technical detail?
Eg.
What is beer?
Simplistically, Beer = Malt + Hops + Yeast + Water.
Malt and hops suspended in water, yeast eats sugar, beer results. However, there can be a hell of a lot more to it, should you be dissatisfied with the beer you make from a can with some instructions under the lid.
The kit cans you buy from the supermarket deal with the first two ingredients for you, the bad thing about this is that you don't get a lot of choice how the end product will taste, you only really control the latter two ingredients.
This guide is to show you how to not rely on cans of hopped extract (kits) to make beer. Thid guide will show you how to extract malt sugars from grain and blend in hops, leading to a much more customisable and higher-quality beer that will be an end to eyes rolled skywards and "Ok, I'll taste some of your homebrew if I must" from your mates.