diff --git a/examples/10_Advanced-GUI.ipynb b/examples/10_Advanced-GUI.ipynb
index 4c5dd064..8ce02836 100644
--- a/examples/10_Advanced-GUI.ipynb
+++ b/examples/10_Advanced-GUI.ipynb
@@ -37,6 +37,13 @@
     "\n",
     "\n",
     "def on_survey_value_change(change: dict) -> None:\n",
+    "    \"\"\"Survey change callback.\n",
+    "\n",
+    "    Parameters\n",
+    "    ----------\n",
+    "    change : dict\n",
+    "        The change dictionary.\n",
+    "    \"\"\"\n",
     "    aladin.survey = change[\"new\"]\n",
     "\n",
     "\n",
@@ -64,6 +71,13 @@
     "\n",
     "\n",
     "def on_survey_overlay_value_change(change: dict) -> None:\n",
+    "    \"\"\"Survey overlay change callback.\n",
+    "\n",
+    "    Parameters\n",
+    "    ----------\n",
+    "    change : dict\n",
+    "        The change dictionary.\n",
+    "    \"\"\"\n",
     "    aladin.overlay_survey = change[\"new\"]\n",
     "    aladin.overlay_survey_opacity = aladin.overlay_survey_opacity + 0.00000001\n",
     "\n",
@@ -85,6 +99,13 @@
     "\n",
     "\n",
     "def on_surveyoverlay_opacity_value_change(change: dict) -> None:\n",
+    "    \"\"\"Survey overlay opacity change callback.\n",
+    "\n",
+    "    Parameters\n",
+    "    ----------\n",
+    "    change : dict\n",
+    "        The change dictionary.\n",
+    "    \"\"\"\n",
     "    aladin.overlay_survey_opacity = change[\"new\"]\n",
     "\n",
     "\n",
@@ -106,6 +127,13 @@
     "\n",
     "\n",
     "def on_zoom_slider_value_change(change: dict) -> None:\n",
+    "    \"\"\"Zoom slider change callback.\n",
+    "\n",
+    "    Parameters\n",
+    "    ----------\n",
+    "    change : dict\n",
+    "        The change dictionary.\n",
+    "    \"\"\"\n",
     "    aladin.fov = 180 / change[\"new\"]\n",
     "\n",
     "\n",
diff --git a/examples/3_Functions.ipynb b/examples/3_Functions.ipynb
index 1db511f7..7864685c 100644
--- a/examples/3_Functions.ipynb
+++ b/examples/3_Functions.ipynb
@@ -80,11 +80,25 @@
    "outputs": [],
    "source": [
     "def get_object_data(data: dict) -> dict:\n",
+    "    \"\"\"Print the clicked object data.\n",
+    "\n",
+    "    Parameters\n",
+    "    ----------\n",
+    "    data : dict\n",
+    "        The data of the clicked object.\n",
+    "    \"\"\"\n",
     "    print(\"It clicked.\")\n",
     "    return data\n",
     "\n",
     "\n",
     "def get_object_ra_dec_product(data: dict) -> float:\n",
+    "    \"\"\"Return the product of the ra and dec values of the clicked object.\n",
+    "\n",
+    "    Parameters\n",
+    "    ----------\n",
+    "    data : dict\n",
+    "        The data of the clicked object.\n",
+    "    \"\"\"\n",
     "    return data[\"ra\"] * data[\"dec\"]\n",
     "\n",
     "\n",
diff --git a/examples/7_on-click-callback.ipynb b/examples/7_on-click-callback.ipynb
index 6fad052d..814c7e21 100644
--- a/examples/7_on-click-callback.ipynb
+++ b/examples/7_on-click-callback.ipynb
@@ -38,6 +38,13 @@
    "outputs": [],
    "source": [
     "def process_result(data: dict) -> None:\n",
+    "    \"\"\"Process the result of a click event on the Aladin widget.\n",
+    "\n",
+    "    Parameters\n",
+    "    ----------\n",
+    "    data : dict\n",
+    "        The data returned by the click event.\n",
+    "    \"\"\"\n",
     "    info.value = \"\"\n",
     "    ra = data[\"ra\"]\n",
     "    dec = data[\"dec\"]\n",
diff --git a/examples/8_Rectangular-selection.ipynb b/examples/8_Rectangular-selection.ipynb
index 62605ac4..7bff0560 100644
--- a/examples/8_Rectangular-selection.ipynb
+++ b/examples/8_Rectangular-selection.ipynb
@@ -34,6 +34,15 @@
     "\n",
     "\n",
     "def on_button_clicked(_: any) -> None:\n",
+    "    \"\"\"Button click event callback.\n",
+    "\n",
+    "    It will trigger the rectangular selection in the Aladin widget.\n",
+    "\n",
+    "    Parameters\n",
+    "    ----------\n",
+    "    _: any\n",
+    "        The button widget that triggered the event.\n",
+    "    \"\"\"\n",
     "    aladin.rectangular_selection()\n",
     "\n",
     "\n",
@@ -62,6 +71,13 @@
     "\n",
     "\n",
     "def process_result(sources: dict) -> None:\n",
+    "    \"\"\"Process the sources selected in the Aladin widget and display them in the table.\n",
+    "\n",
+    "    Parameters\n",
+    "    ----------\n",
+    "    sources: dict\n",
+    "        The sources selected in the Aladin widget.\n",
+    "    \"\"\"\n",
     "    s = '<table border=\"1\">'\n",
     "    s += \"<tr><th>MAIN_ID</th><th>RA</th><th>DEC</th></tr>\"\n",
     "    for source in sources:\n",
diff --git a/pyproject.toml b/pyproject.toml
index 19cae0d0..0c301e02 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,9 +44,12 @@ extend-include = ["*.ipynb"]
 extend-select = ["E", "W", "YTT", "ASYNC", "BLE", "B", "A",
                  "C4", "ISC", "PIE", "PYI", "RSE", "RET", "SIM",
                  "PTH", "TD", "ERA", "PL", "PERF", "RUF", "ARG",
-                 "ANN"
+                 "ANN", "D"
                 ]
-ignore = ["ISC001", "ANN101"]
+ignore = ["ISC001", "ANN101", "D203", "D213", "D100", "D105"]
+
+[tool.ruff.lint.pydocstyle]
+convention = "numpy"
 
 [tool.ruff.format]
 docstring-code-format = false
diff --git a/src/ipyaladin/__init__.py b/src/ipyaladin/__init__.py
index d9faa7a7..5601631e 100644
--- a/src/ipyaladin/__init__.py
+++ b/src/ipyaladin/__init__.py
@@ -1,3 +1,10 @@
+"""
+Aladin Lite widget for Jupyter Notebook.
+
+This module provides a Python wrapper around the Aladin Lite JavaScript library.
+It allows to display astronomical images and catalogs in an interactive way.
+"""
+
 import importlib.metadata
 import pathlib
 import typing
@@ -27,6 +34,12 @@
 
 
 class Aladin(anywidget.AnyWidget):
+    """Aladin Lite widget.
+
+    This widget is a Python wrapper around the Aladin Lite JavaScript library.
+    It allows to display astronomical images and catalogs in an interactive way.
+    """
+
     _esm: Final = pathlib.Path(__file__).parent / "static" / "widget.js"
     _css: Final = pathlib.Path(__file__).parent / "static" / "widget.css"