I have, from time to time, published a number of simple guides covering such topics as how to spot fraudulent emails through to how to deploy multiple wifi access points in an office.
I am currently collating a lot of these historical documents (where they are not now obsolete) and complementing them with new articles, so that they may all be re-written in modern vernacular and provided for free on this website.
As soon as each resource is fit for publishing, I will post it as a blog article.
Expect a book to come out at some point too!