The atomic data types are:

• Null. This signifies the absence of a value, for example when a search has failed to find something.
• Bool. This has two possible values: true and false.
• Integer. This represents a signed, countable integer.
• Float. This represents a floating point number.
• Symbol. Similar to Text value, but immutable, used for fast compare and look-up.

The compound data types containing a fixed number of values are:

• Range. A range of values.

The collection data types, which hold a variable number of values, are:

• Text. A sequence of Unicode characters.
• Bytes. A sequence of 8-bit bytes.
• List. An ordered collection of values.
• Index. A collection of Property values, each of which is indexed by its key.
• Object. A collection of prototypically-inheritable properties that define behavior and attributes.
• Mixin. A collection of inheritable methods and properties that can augment or support objects or instances.

The executable types are:

• Method. Code logic that accepts parameters, performs some action and returns back values.
• Closure. Stateful Action (or get/set pair), which preserves values across every time its Action(s) are performed.
• Context. An execution context, such as the main thread or a yielder.

Other types are:

• Resource. Handler for a resource whose location is specified with a Uniform Resource Locator (URL).
• File. Simple type for getting a resource that uses the 'file://' scheme.
• All. Shared properties for all value types.
• Vm. Virtual Machine.