diff --git a/README.md b/README.md
index 44eb3a7..797a964 100644
--- a/README.md
+++ b/README.md
@@ -110,6 +110,9 @@ The following query components are supported:
 
   // greater than or equal
   EqualityExpression gte(String propertyName, Object value);
+  
+  // is one of these values
+  SetExpression in(String propertyName, Object[] values);
 
   // between from and to (inclusive)
   RangeExpression between(String propertyName, Object from, Object to);
diff --git a/src/main/java/com/eharmony/pho/hbase/translator/PhoenixHBaseOperator.java b/src/main/java/com/eharmony/pho/hbase/translator/PhoenixHBaseOperator.java
index 08ef8d1..9db2765 100644
--- a/src/main/java/com/eharmony/pho/hbase/translator/PhoenixHBaseOperator.java
+++ b/src/main/java/com/eharmony/pho/hbase/translator/PhoenixHBaseOperator.java
@@ -17,7 +17,8 @@ public enum PhoenixHBaseOperator implements Symbolic {
     AND("AND"),
     
     LIKE("LIKE"),
-    LIKE_CASE_INSENSITIVE("ILIKE");
+    LIKE_CASE_INSENSITIVE("ILIKE"),  
+    IN("IN");
 
     private final String symbol;
 
diff --git a/src/main/java/com/eharmony/pho/hbase/translator/PhoenixHBaseQueryTranslator.java b/src/main/java/com/eharmony/pho/hbase/translator/PhoenixHBaseQueryTranslator.java
index dcb8690..e6a3c50 100644
--- a/src/main/java/com/eharmony/pho/hbase/translator/PhoenixHBaseQueryTranslator.java
+++ b/src/main/java/com/eharmony/pho/hbase/translator/PhoenixHBaseQueryTranslator.java
@@ -162,8 +162,16 @@ public String between(String fieldName, Object from, Object to) {
     }
 
     @Override
-    public String in(String fieldName, Object[] values) {
-        throw new UnsupportedOperationException("IN operator is not supported in phoenix hbase library...");
+    public String in(String fieldName, Object[] values) {	
+		
+		String valueSet = Joiner.on(",").join(values);
+		StringBuffer sb = new StringBuffer();
+		return sb.append(resolveMappingName(fieldName))
+					.append(" ")
+					.append(PhoenixHBaseOperator.IN)
+					.append(" (")
+					.append(valueSet)
+					.append(")").toString();
     }
 
     @Override
diff --git a/src/test/java/com/eharmony/pho/hbase/translator/PhoenixHBaseQueryTranslatorTest.java b/src/test/java/com/eharmony/pho/hbase/translator/PhoenixHBaseQueryTranslatorTest.java
index 564d9c2..2c2cb33 100644
--- a/src/test/java/com/eharmony/pho/hbase/translator/PhoenixHBaseQueryTranslatorTest.java
+++ b/src/test/java/com/eharmony/pho/hbase/translator/PhoenixHBaseQueryTranslatorTest.java
@@ -104,6 +104,16 @@ public void testBooleanEq() throws ParseException, ClassNotFoundException {
         System.out.println(result);
         Assert.assertEquals("isu = true", result);
     }
+    
+    @Test
+    public void testIn() throws ParseException, ClassNotFoundException {
+        PhoenixHBaseQueryTranslator translator = new PhoenixHBaseQueryTranslator(entityPropertiesResolver);
+        Object[] inVals = new Object[]{0,10,11};
+        String result = translator.in("cstat", inVals);
+        Assert.assertNotNull(result);
+        System.out.println(result);
+        Assert.assertEquals("cstat IN (0,10,11)", result);
+    }
 
     @Test
     public void testLongEq() throws ParseException, ClassNotFoundException {