diff --git a/README.md b/README.md
index d1ff08a..7aac892 100644
--- a/README.md
+++ b/README.md
@@ -400,6 +400,8 @@ When releasing pieces to the SDK our thought process is guided by the following
 Links to more in-depth documentation we have written about features.
 
 * [SmartDateField](./examples/fields/SmartDateField.README.md)
+* [RegionFields CountryField and StateField](./examples/fields/RegionFields.README.md)
+* [BooleanSynonymField](./examples/fields/BooleanSynonymField.README.md)
 
 ---
 
diff --git a/examples/fields/BooleanSynonymField.md b/examples/fields/BooleanSynonymField.md
new file mode 100644
index 0000000..8a2b495
--- /dev/null
+++ b/examples/fields/BooleanSynonymField.md
@@ -0,0 +1,24 @@
+# BooleanSynonymField
+
+BooleanSynonymField lets you specify custom synonyms for boolean values.  This need is so common we decided to encapsulate the logic into a field
+
+## Use
+```
+spanishBoolean : BooleanSynonymField({
+      trueSubstitutes: ['si', 'affirmative'],
+      falseSubstitutes: ['nay', 'non'],
+    })
+```
+
+how does our field behave
+| raw         | output |
+|:------------|:-------|
+| si          | true   |
+| true        | true   |
+| yes         | true   |
+| affirmative | true   |
+| nay         | false  |
+| non         | false  |
+
+
+"yes" and "true" return `true` because BooleanSynonymField augments the base BooleanField
diff --git a/examples/fields/RegionFields.md b/examples/fields/RegionFields.md
new file mode 100644
index 0000000..0924ecc
--- /dev/null
+++ b/examples/fields/RegionFields.md
@@ -0,0 +1,62 @@
+# RegionFields
+
+`CountryField` and `StateField` are two region fields.  Both fields convert between common formats.
+
+## StateField
+StateField outputs a state in two formats - `two-letter` or `full`. 
+
+
+### `two-letter`
+| raw     | output |
+|:--------|:-------|
+| ak      | AK     |
+| MS      | MS     |
+| Ri      | RI     |
+| Alabama | AL     |
+
+### `full`
+| raw     | output       |
+|:--------|:-------------|
+| ak      | Alaska       |
+| MS      | Mississippi  |
+| Ri      | Rhode Island |
+| Alabama | Alabama      |
+
+Instantiate StateField as follows
+```
+state: StateField({ stateFormat: 'two-letter' })
+```
+
+## CountryField
+
+CountryField has three options for `countryFormat` - `iso-2`, `iso-3`, `full`
+
+### `iso-2`
+| raw    | output |
+|:-------|:-------|
+| us     | US     |
+| USA    | US     |
+| USa    | US     |
+| France | FR     |
+
+### `iso-3`
+| raw    | output |
+|:-------|:-------|
+| us     | USA    |
+| USA    | USA    |
+| USa    | USA    |
+| France | FRA    |
+
+### `full`
+| raw    | output                   |
+|:-------|:-------------------------|
+| us     | United States of America |
+| USA    | United States of America |
+| USa    | United States of America |
+| France | France                   |
+
+
+Instantiate `CountryField` like this
+```
+country: CountryField({'countryFormat':'iso-2'})
+```