Written for an organization with people whose actual job is managing IT infrastructure, and data whose loss would hurt.
Think of it likeHiring someone whose job is the building, rather than asking whoever is nearest to check the locks.
In plain English
IG2 is cumulative: it is every IG1 safeguard plus the ones that need someone to own them full time. The jump is less about buying tools and more about having a person accountable for configuration, logging, and access review.
IG2 covers 130 of the 153 safeguards in CIS Controls v8, which is every IG1 safeguard plus the 74 added at this level. Each one below links to a plain-English translation.
Control 1: Inventory and Control of Enterprise Assets