diff --git a/docs/misc/error.rst b/docs/misc/error.rst
new file mode 100644
index 00000000..68a48f5b
--- /dev/null
+++ b/docs/misc/error.rst
@@ -0,0 +1,10 @@
+-------------
+Mindee Errors
+-------------
+
+.. automodule:: mindee.error
+    :imported-members:
+    :inherited-members:
+    :members:
+    :undoc-members:
+
diff --git a/docs/parsing/custom.rst b/docs/parsing/custom.rst
index f1fd1172..0250e2b4 100644
--- a/docs/parsing/custom.rst
+++ b/docs/parsing/custom.rst
@@ -25,3 +25,8 @@ List Field Value
 ----------------
 .. autoclass:: mindee.parsing.custom.list.ListFieldValueV1
     :members:
+
+String Dict
+-----------
+.. autoclass:: mindee.parsing.common.string_dict.StringDict
+    :members:
diff --git a/docs/parsing/standard.rst b/docs/parsing/standard.rst
index 8ff71d96..1343c6f7 100644
--- a/docs/parsing/standard.rst
+++ b/docs/parsing/standard.rst
@@ -14,6 +14,12 @@ Text Field
     :members:
     :inherited-members:
 
+Classification Field
+--------------------
+.. autoclass:: mindee.parsing.standard.classification.ClassificationField
+    :members:
+    :inherited-members:
+
 Company Registration Field
 --------------------------
 .. autoclass:: mindee.parsing.standard.company_registration.CompanyRegistrationField
diff --git a/docs/product/receipt_v4.rst b/docs/product/receipt_v4.rst
new file mode 100644
index 00000000..92bdfda5
--- /dev/null
+++ b/docs/product/receipt_v4.rst
@@ -0,0 +1,16 @@
+Receipt V4
+----------
+
+**Sample Code:**
+
+.. literalinclude:: /extras/code_samples/expense_receipts_v4.txt
+    :language: Python
+
+.. autoclass:: mindee.product.receipt.receipt_v4.ReceiptV4
+    :members:
+    :inherited-members:
+    
+.. autoclass:: mindee.product.receipt.receipt_v4_document.ReceiptV4Document
+    :members:
+    :inherited-members:
+
diff --git a/mindee/error/__init__.py b/mindee/error/__init__.py
index d99d5eb2..33358cd3 100644
--- a/mindee/error/__init__.py
+++ b/mindee/error/__init__.py
@@ -1,6 +1,9 @@
+from mindee.error.geometry_error import GeometryError
+from mindee.error.mimetype_error import MimeTypeError
 from mindee.error.mindee_error import MindeeClientError, MindeeError
 from mindee.error.mindee_http_error import (
     MindeeHTTPClientError,
     MindeeHTTPError,
     MindeeHTTPServerError,
+    handle_error,
 )
diff --git a/mindee/geometry/error.py b/mindee/error/geometry_error.py
similarity index 100%
rename from mindee/geometry/error.py
rename to mindee/error/geometry_error.py
diff --git a/mindee/error/mimetype_error.py b/mindee/error/mimetype_error.py
new file mode 100644
index 00000000..a7f05212
--- /dev/null
+++ b/mindee/error/mimetype_error.py
@@ -0,0 +1,2 @@
+class MimeTypeError(AssertionError):
+    """The MIME Type is not valid."""
diff --git a/mindee/error/mindee_error.py b/mindee/error/mindee_error.py
index 47e92d74..41295cfd 100644
--- a/mindee/error/mindee_error.py
+++ b/mindee/error/mindee_error.py
@@ -1,9 +1,13 @@
 class MindeeError(RuntimeError):
-    """A generic exception relating to various client errors."""
+    """A generic exception relating to various HTTP errors."""
 
 
 class MindeeClientError(MindeeError):
-    """An exception relating to document parsing."""
+    """
+    An exception relating to document parsing errors.
+
+    Not to be confused with `MindeeHTTPClientError`.
+    """
 
 
 class MindeeApiError(MindeeError):
diff --git a/mindee/geometry/__init__.py b/mindee/geometry/__init__.py
index 7137de5d..07c1ef84 100644
--- a/mindee/geometry/__init__.py
+++ b/mindee/geometry/__init__.py
@@ -1,5 +1,4 @@
 from mindee.geometry.bbox import BBox, get_bbox
-from mindee.geometry.error import GeometryError
 from mindee.geometry.minmax import MinMax, get_min_max_x, get_min_max_y
 from mindee.geometry.point import Point, Points
 from mindee.geometry.polygon import (
diff --git a/mindee/geometry/quadrilateral.py b/mindee/geometry/quadrilateral.py
index 1744b47c..7034dc4f 100644
--- a/mindee/geometry/quadrilateral.py
+++ b/mindee/geometry/quadrilateral.py
@@ -1,7 +1,7 @@
 from typing import NamedTuple, Sequence
 
+from mindee.error.geometry_error import GeometryError
 from mindee.geometry.bbox import get_bbox
-from mindee.geometry.error import GeometryError
 from mindee.geometry.point import Point, Points
 from mindee.geometry.polygon_utils import get_centroid
 
diff --git a/mindee/input/__init__.py b/mindee/input/__init__.py
index e69de29b..fde6821d 100644
--- a/mindee/input/__init__.py
+++ b/mindee/input/__init__.py
@@ -0,0 +1,10 @@
+from mindee.input.page_options import PageOptions
+from mindee.input.sources import (
+    Base64Input,
+    BytesInput,
+    FileInput,
+    InputType,
+    LocalInputSource,
+    PathInput,
+    UrlInputSource,
+)
diff --git a/mindee/input/sources.py b/mindee/input/sources.py
index 7e6e1ca8..63c64eaf 100644
--- a/mindee/input/sources.py
+++ b/mindee/input/sources.py
@@ -8,6 +8,7 @@
 
 import pikepdf
 
+from mindee.error.mimetype_error import MimeTypeError
 from mindee.error.mindee_error import MindeeSourceError
 from mindee.input.page_options import KEEP_ONLY, REMOVE
 from mindee.logger import logger
@@ -36,10 +37,6 @@ class InputType(Enum):
     URL = "url"
 
 
-class MimeTypeError(AssertionError):
-    """The MIME Type is not valid."""
-
-
 class LocalInputSource:
     """Base class for all input sources coming from the local machine."""
 
diff --git a/mindee/mindee_http/__init__.py b/mindee/mindee_http/__init__.py
index 88384335..3ec07766 100644
--- a/mindee/mindee_http/__init__.py
+++ b/mindee/mindee_http/__init__.py
@@ -1,2 +1,3 @@
+from mindee.mindee_http.base_endpoint import BaseEndpoint
 from mindee.mindee_http.endpoint import CustomEndpoint, Endpoint
 from mindee.mindee_http.mindee_api import MindeeApi
diff --git a/mindee/mindee_http/base_endpoint.py b/mindee/mindee_http/base_endpoint.py
index af4e30ac..fbae13b8 100644
--- a/mindee/mindee_http/base_endpoint.py
+++ b/mindee/mindee_http/base_endpoint.py
@@ -4,12 +4,12 @@
 
 
 class BaseEndpoint(ABC):
-    """Base endpoint for the Mindee API."""
+    """Base endpoint class for the Mindee API."""
 
     def __init__(self, settings: MindeeApi) -> None:
         """
         Base API endpoint class for all endpoints.
 
-        :param settings: Settings relating to all endpoints
+        :param settings: Settings relating to all endpoints.
         """
         self.settings = settings
diff --git a/mindee/parsing/common/inference.py b/mindee/parsing/common/inference.py
index d4eddd09..112e8c1c 100644
--- a/mindee/parsing/common/inference.py
+++ b/mindee/parsing/common/inference.py
@@ -1,4 +1,4 @@
-from typing import Dict, Generic, List, Optional, TypeVar
+from typing import Dict, Generic, List, Optional, Type, TypeVar
 
 from mindee.error.mindee_error import MindeeError
 from mindee.parsing.common.page import TypePage
@@ -55,11 +55,13 @@ def __str__(self) -> str:
         )
 
     @staticmethod
-    def get_endpoint_info(klass) -> Dict[str, str]:
+    def get_endpoint_info(klass: Type["Inference"]) -> Dict[str, str]:
         """
         Retrives the endpoint information for an Inference.
 
         Should never retrieve info for CustomV1, as a custom endpoint should be created to use CustomV1.
+
+        :param klass: product subclass to access endpoint information.
         """
         if klass.endpoint_name and klass.endpoint_version:
             return {"name": klass.endpoint_name, "version": klass.endpoint_version}
diff --git a/mindee/parsing/common/string_dict.py b/mindee/parsing/common/string_dict.py
index a6241110..cf91cdd0 100644
--- a/mindee/parsing/common/string_dict.py
+++ b/mindee/parsing/common/string_dict.py
@@ -1,3 +1,4 @@
 from typing import Any, Dict
 
 StringDict = Dict[str, Any]
+"""Basic JSON-compliant python dictionary."""
diff --git a/mindee/parsing/standard/position.py b/mindee/parsing/standard/position.py
index f6f732bf..f82b7605 100644
--- a/mindee/parsing/standard/position.py
+++ b/mindee/parsing/standard/position.py
@@ -1,6 +1,6 @@
 from typing import Optional
 
-from mindee.geometry.error import GeometryError
+from mindee.error.geometry_error import GeometryError
 from mindee.geometry.polygon import Polygon, polygon_from_prediction
 from mindee.geometry.quadrilateral import Quadrilateral, quadrilateral_from_prediction
 from mindee.parsing.common.string_dict import StringDict
diff --git a/tests/test_inputs.py b/tests/test_inputs.py
index 441795eb..be73fa5e 100644
--- a/tests/test_inputs.py
+++ b/tests/test_inputs.py
@@ -4,13 +4,13 @@
 import pikepdf
 import pytest
 
+from mindee.error.mimetype_error import MimeTypeError
 from mindee.error.mindee_error import MindeeError, MindeeSourceError
 from mindee.input.page_options import KEEP_ONLY, REMOVE
 from mindee.input.sources import (
     Base64Input,
     BytesInput,
     FileInput,
-    MimeTypeError,
     PathInput,
     UrlInputSource,
 )