Throughout the book there are useful troubleshooting notes.
It is a matter of making sure that when someone was doing one thing and they were used to doing that thing, there are useful transitions to being able to do something new.
The information comes at us steadily — there are useful facts on almost every page — but the narrative is spartanly furnished.
There are useful components everywhere from explosives, to ethanol, to bandages, and using a similar interface to The Last of Us, these can be crafted into a range of items, including medikits, molotov cocktails, flares and a noise maker, useful for distraction.
But there are useful ones, too.
There are useful models to adopt.
There are useful lessons in the civil-rights movement.
And there are useful economic consequences: almost every successful business is built upon the family.
There are useful sound files for thousands of words and interactive games to reinforce learning.
There are useful maps, too, and a glossy section of color illustrations.
