diff --git a/build/airtable.browser.js b/build/airtable.browser.js
index a21733b9..a126e3bc 100644
--- a/build/airtable.browser.js
+++ b/build/airtable.browser.js
@@ -445,7 +445,7 @@ module.exports = objectToQueryParamString;
 
 },{"lodash/isArray":79,"lodash/isNil":85,"lodash/keys":93}],12:[function(require,module,exports){
 "use strict";
-module.exports = "0.12.2";
+module.exports = "0.12.3";
 
 },{}],13:[function(require,module,exports){
 "use strict";
diff --git a/package-lock.json b/package-lock.json
index 85c84689..d9d7d8ab 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "airtable",
-  "version": "0.12.2",
+  "version": "0.12.3",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "airtable",
-      "version": "0.12.1",
+      "version": "0.12.3",
       "license": "MIT",
       "dependencies": {
         "@types/node": ">=8.0.0 <15",
diff --git a/package.json b/package.json
index e28fd761..6117cb4b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "airtable",
-  "version": "0.12.2",
+  "version": "0.12.3",
   "license": "MIT",
   "homepage": "https://github.com/airtable/airtable.js",
   "repository": "git://github.com/airtable/airtable.js.git",
diff --git a/src/ai_text.ts b/src/ai_text.ts
new file mode 100644
index 00000000..55d72afd
--- /dev/null
+++ b/src/ai_text.ts
@@ -0,0 +1,6 @@
+export interface AiTextResult {
+    state: 'empty' | 'loading' | 'generated' | 'error';
+    isStale: boolean;
+    value?: string;
+    errorType?: string;
+}
diff --git a/src/barcode.ts b/src/barcode.ts
new file mode 100644
index 00000000..aadc06d2
--- /dev/null
+++ b/src/barcode.ts
@@ -0,0 +1,4 @@
+export interface Barcode {
+    type?: string;
+    text?: string;
+}
\ No newline at end of file
diff --git a/src/button.ts b/src/button.ts
new file mode 100644
index 00000000..e722160b
--- /dev/null
+++ b/src/button.ts
@@ -0,0 +1,4 @@
+export interface Button {
+    label: string;
+    url?: string;
+}
\ No newline at end of file
diff --git a/src/collaborator.ts b/src/collaborator.ts
index 932fa8bb..aff87208 100644
--- a/src/collaborator.ts
+++ b/src/collaborator.ts
@@ -1,5 +1,6 @@
 export interface Collaborator {
     id: string;
-    email: string;
-    name: string;
+    email?: string;
+    name?: string;
+    profilePicUrl?: string;
 }
diff --git a/src/field_set.ts b/src/field_set.ts
index 8a5e79c6..a51ed4fb 100644
--- a/src/field_set.ts
+++ b/src/field_set.ts
@@ -1,14 +1,56 @@
 import {Collaborator} from './collaborator';
 import {Attachment} from './attachment';
+import {Barcode} from './barcode';
+import {Button} from './button';
+import {SyncSource} from './sync_source';
+import {AiTextResult} from './ai_text';
 
+// Built from https://airtable.com/developers/web/api/field-model
+// AI Text: AiTextResult
+// Attachment: Attachment
+// Auto number: number
+// Barcode: Barcode
+// Button: Button
+// Checkbox: boolean
+// Collaborator: Collaborator
+// Count: number
+// Created by: Collaborator
+// Created time: string
+// Currency: number
+// Date: string
+// Date and time: string
+// Duration: number
+// Email: string
+// Formula: string | number
+// Last modified by: 
+// Last modified time: string
+// Link to another record: string[]
+// Long text: string
+// Lookup: FieldValue[]
+// Multiple collaborator: Collaborator[]
+// Multiple select: string[]
+// Number: number
+// Percent: number
+// Phone: string
+// Rating: number
+// Rich text: string
+// Rollup: ReadonlyArray<FieldArray> | string | number
+// Single line text: string
+// Single select: string
+// Sync source: SyncSource
+// Url: string
+export type FieldValue = 
+    undefined | 
+    string | 
+    number | 
+    boolean | 
+    AiTextResult | 
+    Barcode | 
+    Button | 
+    Collaborator | 
+    SyncSource | 
+    ReadonlyArray<Attachment> | 
+    ReadonlyArray<FieldValue>;
 export interface FieldSet {
-    [key: string]:
-        | undefined
-        | string
-        | number
-        | boolean
-        | Collaborator
-        | ReadonlyArray<Collaborator>
-        | ReadonlyArray<string>
-        | ReadonlyArray<Attachment>;
+    [key: string]: FieldValue;
 }
diff --git a/src/sync_source.ts b/src/sync_source.ts
new file mode 100644
index 00000000..71364811
--- /dev/null
+++ b/src/sync_source.ts
@@ -0,0 +1,5 @@
+export interface SyncSource {
+    id: string;
+    name: string;
+    color?: string;
+}
\ No newline at end of file
diff --git a/test/test_files/airtable.browser.js b/test/test_files/airtable.browser.js
index a21733b9..a126e3bc 100644
--- a/test/test_files/airtable.browser.js
+++ b/test/test_files/airtable.browser.js
@@ -445,7 +445,7 @@ module.exports = objectToQueryParamString;
 
 },{"lodash/isArray":79,"lodash/isNil":85,"lodash/keys":93}],12:[function(require,module,exports){
 "use strict";
-module.exports = "0.12.2";
+module.exports = "0.12.3";
 
 },{}],13:[function(require,module,exports){
 "use strict";