diff --git a/src/cryptbase/__init__.py b/src/cryptbase/__init__.py
index 5833b19..3c7f8a2 100644
--- a/src/cryptbase/__init__.py
+++ b/src/cryptbase/__init__.py
@@ -8,6 +8,15 @@ try:
     from django.db import models
 
     class EncryptedTextField(models.TextField):
+        """
+        Django model field to provide database encryption using AES-256-CTR.
+        Simply replace existing TextField with EncryptedTextField and add
+        hex encoded 256-bit long encryption key to use. In code, you can
+        read and write the data with no further changes. However, in the
+        underlying database they will be encrypted.
+
+        Make sure to migrate the data appropriately.
+        """
         description = 'Encrypted data'
 
         def __init__(self, *args, **kwargs):
@@ -43,6 +52,15 @@ try:
     from sqlalchemy import types
 
     class EncryptedText(types.TypeDecorator):
+        """
+        SQLAlchemy model field to provide database encryption using AES-256-CTR.
+        Simply replace existing TEXT field with EncryptedText field and add
+        hex encoded 256-bit long encryption key to use. In code, you can
+        read and write the data with no further changes. However, in the
+        underlying database they will be encrypted.
+
+        Make sure to migrate the data appropriately.
+        """
         impl = types.TEXT
 
         def __init__(self, *args, **kwargs):