Hyperledger is a project to maintain a platform for distributed ledger projects and the toolkits and apps that support and use them. It’s intended for building private systems where everyone participating can be identified, so does not have an associated proof-of-work token or the “cryptocurrency” aura that goes with it.
It may be the tool that finally re-decentralises the Internet. By taking away the shiny gold, people can finally see the power of a distributed ledger whose authority is established by consensus rather than heirarchy. The book Simon mentions, “The Mystery of Capital” by Hernando de Soto, is available from Amazon UK and Amazon US.