diff --git a/posts/2024-04-02-n5-attribute-paths.ipynb b/posts/2024-04-02-n5-attribute-paths.ipynb
index 96e2fe1..ff61134 100644
--- a/posts/2024-04-02-n5-attribute-paths.ipynb
+++ b/posts/2024-04-02-n5-attribute-paths.ipynb
@@ -315,14 +315,6 @@
     "Arrays.toString(n5.getAttribute(group, \"array\", String[].class));"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "760f4b7b",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  },
   {
    "cell_type": "markdown",
    "id": "7422f926",
@@ -370,7 +362,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": null,
    "id": "1e7f51b1",
    "metadata": {},
    "outputs": [
@@ -494,7 +486,8 @@
    ],
    "source": [
     "n5.setAttribute(group, \"pet\", new Pet(\"Pluto\", 93));\n",
-    "n5.getAttribute(group, \"pet\", Pet.class);"
+    "Pet pet = n5.getAttribute(group, \"pet\", Pet.class);\n",
+    "pet; // without this, it even confused me, making me think that `getAttrbiute` was returing a `String`, not a `Pet`"
    ]
   },
   {
@@ -547,7 +540,8 @@
    "source": [
     "## Mixing object and array indexing\n",
     "\n",
-    "This example sets the value of an integer inside several nested arrays and objects."
+    "This example sets the value of an integer inside several nested arrays and objects.\n",
+    "Note:  When indexing an array, the path separators `/` at before and after the index operator `[ ]` are optional."
    ]
   },
   {
@@ -571,7 +565,10 @@
     "// remove all attributes \n",
     "n5.removeAttribute(group, \"/\");\n",
     "\n",
+    "// Both are equivalent \n",
     "n5.setAttribute(group, \"one/[2]/three/[4]\", 5);\n",
+    "n5.setAttribute(group, \"one[2]/three[4]\", 5);\n",
+    "\n",
     "n5.getAttribute(group, \"/\", JsonElement.class);"
    ]
   },
@@ -582,7 +579,7 @@
    "source": [
     "## Removing attributes and dealing with nulls\n",
     "\n",
-    "We saw about that `removeAttribute` can be used to remove attributes. The first variant takes the group and attribute key as arguments, and returns nothing. The second variant also takes a Class<T> argument and will return an object of type T if possible. If the value of the attribute cannot be parsed into the requested type, the attribute will not be removed, even if the key exists."
+    "We saw about that `removeAttribute` can be used to remove attributes. The first variant takes the group and attribute key as arguments, and returns nothing after removal. The second variant also takes a Class<T> argument and will return the removed object of type T if possible. If the value of the attribute cannot be parsed into the requested type, the attribute will not be removed, even if the key exists."
    ]
   },
   {
@@ -707,7 +704,7 @@
    "id": "241cd1c8",
    "metadata": {},
    "source": [
-    "By default, setting the value of an attribute to null will remove that attribute (i.e. the attribute's key will be removed)."
+    "In the default implemenation, setting the value of an attribute to null will remove that attribute (i.e. the attribute's key will be removed). "
    ]
   },
   {
@@ -791,6 +788,40 @@
     "n5WithNulls.getAttribute(group, \"/\", JsonElement.class);"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "94f4cb74",
+   "metadata": {},
+   "source": [
+    "While this is the default behaviour, it is strongly recommended to use `removeAttribute` methods when removing attributes, since setting an attribute to `null` it can lead to inconsistent behaviour, depending on how the N5Writer was created. \n",
+    "Setting an attribute path to `null` can even result in creating attributes along the path, regardless of whether `serializeNulls` is enabled or not. \n",
+    "\n",
+    "((Maybe this should move to caveats?))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "153ae6e1",
+   "metadata": {},
+   "outputs": [
+    {
+     "ename": "NameError",
+     "evalue": "name 'n5' is not defined",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[0;31mNameError\u001b[0m                                 Traceback (most recent call last)",
+      "Cell \u001b[0;32mIn[1], line 1\u001b[0m\n\u001b[0;32m----> 1\u001b[0m \u001b[43mn5\u001b[49m\u001b[38;5;241m.\u001b[39msetAttribute(group, \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124ma/b/c\u001b[39m\u001b[38;5;124m\"\u001b[39m, null)\n",
+      "\u001b[0;31mNameError\u001b[0m: name 'n5' is not defined"
+     ]
+    }
+   ],
+   "source": [
+    "n5.setAttribute(group, \"a/b/c\", null)\n",
+    "// I would expect {\"a\":{\"b\":{}}}"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "b8b61016",
@@ -937,10 +968,27 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f4212a2c",
+   "id": "df50dfbe",
+   "metadata": {},
+   "source": [
+    "## Warnings and caveats\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "8eb13a15",
+   "metadata": {},
+   "source": [
+    "Since keys are paths, when setting a key path where some elements don't exist, it is possible "
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "2dd9e11a",
    "metadata": {},
    "source": [
-    "## Warnings and caveats\n",
+    "\n",
+    "\n",
     "\n",
     "\n",
     "::: {.callout-warning}\n",
@@ -988,17 +1036,21 @@
  "metadata": {
   "celltoolbar": "Tags",
   "kernelspec": {
-   "display_name": "Java",
-   "language": "java",
-   "name": "java"
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
   },
   "language_info": {
-   "codemirror_mode": "java",
-   "file_extension": ".jshell",
-   "mimetype": "text/x-java-source",
-   "name": "Java",
-   "pygments_lexer": "java",
-   "version": "19.0.2+7-Ubuntu-0ubuntu322.04"
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.13"
   }
  },
  "nbformat": 4,