diff --git a/example/Online Retail Analysis.ipynb b/example/Online Retail Analysis.ipynb
index 1cdb001..4b78125 100644
--- a/example/Online Retail Analysis.ipynb	
+++ b/example/Online Retail Analysis.ipynb	
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 97,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -30,7 +30,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -611,7 +611,146 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# add isin example"
+    "we can also filter the data frame using a list of values."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'terms': {'country': ['Germany', 'United States']}}\n"
+     ]
+    },
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>country</th>\n",
+       "      <th>customer_id</th>\n",
+       "      <th>description</th>\n",
+       "      <th>invoice_date</th>\n",
+       "      <th>invoice_no</th>\n",
+       "      <th>quantity</th>\n",
+       "      <th>stock_code</th>\n",
+       "      <th>unit_price</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>wXcVa24BUkfJ5hz0pRsL</th>\n",
+       "      <td>United Kingdom</td>\n",
+       "      <td>17850</td>\n",
+       "      <td>WHITE HANGING HEART T-LIGHT HOLDER</td>\n",
+       "      <td>2010-12-01 08:26:00</td>\n",
+       "      <td>536365</td>\n",
+       "      <td>6</td>\n",
+       "      <td>85123A</td>\n",
+       "      <td>2.55</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>wncVa24BUkfJ5hz0pRsL</th>\n",
+       "      <td>United Kingdom</td>\n",
+       "      <td>17850</td>\n",
+       "      <td>WHITE METAL LANTERN</td>\n",
+       "      <td>2010-12-01 08:26:00</td>\n",
+       "      <td>536365</td>\n",
+       "      <td>6</td>\n",
+       "      <td>71053</td>\n",
+       "      <td>3.39</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>w3cVa24BUkfJ5hz0pRsL</th>\n",
+       "      <td>United Kingdom</td>\n",
+       "      <td>17850</td>\n",
+       "      <td>CREAM CUPID HEARTS COAT HANGER</td>\n",
+       "      <td>2010-12-01 08:26:00</td>\n",
+       "      <td>536365</td>\n",
+       "      <td>8</td>\n",
+       "      <td>84406B</td>\n",
+       "      <td>2.75</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>xHcVa24BUkfJ5hz0pRsL</th>\n",
+       "      <td>United Kingdom</td>\n",
+       "      <td>17850</td>\n",
+       "      <td>KNITTED UNION FLAG HOT WATER BOTTLE</td>\n",
+       "      <td>2010-12-01 08:26:00</td>\n",
+       "      <td>536365</td>\n",
+       "      <td>6</td>\n",
+       "      <td>84029G</td>\n",
+       "      <td>3.39</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>xXcVa24BUkfJ5hz0pRsL</th>\n",
+       "      <td>United Kingdom</td>\n",
+       "      <td>17850</td>\n",
+       "      <td>RED WOOLLY HOTTIE WHITE HEART</td>\n",
+       "      <td>2010-12-01 08:26:00</td>\n",
+       "      <td>536365</td>\n",
+       "      <td>6</td>\n",
+       "      <td>84029E</td>\n",
+       "      <td>3.39</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>\n",
+       "<p>5 rows x 8 columns</p>"
+      ],
+      "text/plain": [
+       "                             country customer_id  \\\n",
+       "wXcVa24BUkfJ5hz0pRsL  United Kingdom       17850   \n",
+       "wncVa24BUkfJ5hz0pRsL  United Kingdom       17850   \n",
+       "w3cVa24BUkfJ5hz0pRsL  United Kingdom       17850   \n",
+       "xHcVa24BUkfJ5hz0pRsL  United Kingdom       17850   \n",
+       "xXcVa24BUkfJ5hz0pRsL  United Kingdom       17850   \n",
+       "\n",
+       "                                              description        invoice_date  \\\n",
+       "wXcVa24BUkfJ5hz0pRsL   WHITE HANGING HEART T-LIGHT HOLDER 2010-12-01 08:26:00   \n",
+       "wncVa24BUkfJ5hz0pRsL                  WHITE METAL LANTERN 2010-12-01 08:26:00   \n",
+       "w3cVa24BUkfJ5hz0pRsL       CREAM CUPID HEARTS COAT HANGER 2010-12-01 08:26:00   \n",
+       "xHcVa24BUkfJ5hz0pRsL  KNITTED UNION FLAG HOT WATER BOTTLE 2010-12-01 08:26:00   \n",
+       "xXcVa24BUkfJ5hz0pRsL        RED WOOLLY HOTTIE WHITE HEART 2010-12-01 08:26:00   \n",
+       "\n",
+       "                     invoice_no quantity stock_code unit_price  \n",
+       "wXcVa24BUkfJ5hz0pRsL     536365        6     85123A       2.55  \n",
+       "wncVa24BUkfJ5hz0pRsL     536365        6      71053       3.39  \n",
+       "w3cVa24BUkfJ5hz0pRsL     536365        8     84406B       2.75  \n",
+       "xHcVa24BUkfJ5hz0pRsL     536365        6     84029G       3.39  \n",
+       "xXcVa24BUkfJ5hz0pRsL     536365        6     84029E       3.39  \n",
+       "\n",
+       "[5 rows x 8 columns]"
+      ]
+     },
+     "execution_count": 7,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "print(df['country'].isin(['Germany', 'United States']))\n",
+    "df[df['country'].isin(['Germany', 'United Kingdom'])].head(5)"
    ]
   },
   {
@@ -1072,13 +1211,6 @@
     "   (df['unit_price']>0) & \n",
     "   (df['unit_price']<100)].select_dtypes(include=[np.number]).hist(figsize=[12,4], bins=30)"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {