The Basics
When you create a Monero account you’ll have a private @view-key, a private @spend-key, and a Public Address. The @spend-key is used to send payments, the @view-key is used to display incoming transactions destined for your account, and the Public Address is for receiving payments. Both the @spend-key and @view-key are used to build your Monero address. You can have a “watch only” wallet that only uses the @view-key. This feature can be used for accounting or auditing purposes but is currently unreliable due to the inability to track outgoing transactions. You can decide who can see your Monero balance by sharing your @view-key. Monero is private by default and optionally semi-transparent!