Skills unlock new kinds of operations, upgrades and expansions for your operations, new resource types, and other bits of knowledge useful for your outfit.
Sometimes you will make a very useful friend – the kind that is willing to teach you how to do new things. In exchange for a favor and some resources or cash, there is a universe of knowledge in the city, and they will tell you what they know. Improve your existing operations. Learn about building new ones. Be on the lookout for those useful friends that will help you extend your outfit’s ability to meet the demands created by Prohibition.
It is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.