diff --git a/src/CSVelte/Collection/TabularCollection.php b/src/CSVelte/Collection/TabularCollection.php
index fb0855c..68fcdbb 100644
--- a/src/CSVelte/Collection/TabularCollection.php
+++ b/src/CSVelte/Collection/TabularCollection.php
@@ -46,4 +46,13 @@ protected function isConsistentDataStructure($data)
 
         return static::isTabular($data);
     }
+
+    public function map(callable $callback)
+    {
+        $ret = [];
+        foreach ($this->data as $key => $row) {
+            $ret[$key] = $callback(static::factory($row));
+        }
+        return static::factory($ret);
+    }
 }
\ No newline at end of file
diff --git a/tests/CSVelte/Collection/AbstractCollectionTest.php b/tests/CSVelte/Collection/AbstractCollectionTest.php
index 26091dd..1e4d800 100644
--- a/tests/CSVelte/Collection/AbstractCollectionTest.php
+++ b/tests/CSVelte/Collection/AbstractCollectionTest.php
@@ -14,6 +14,7 @@
 namespace CSVelteTest\Collection;
 
 use CSVelte\Collection\MultiCollection;
+use CSVelte\Collection\TabularCollection;
 use CSVelteTest\UnitTestCase;
 use Faker;
 
@@ -44,5 +45,34 @@ public function setUp()
             $this->testdata[MultiCollection::class]['words'][] = $faker->words;
             $this->testdata[MultiCollection::class]['userAgent'][] = $faker->userAgent;
         }
+        $this->testdata[TabularCollection::class] = [
+            'user' => [],
+            'profile' => []
+        ];
+        for($t = 1; $t <= 5; $t++) {
+            $created = $faker->dateTimeThisYear->format('YmdHis');
+            $profile_id = $t + 125;
+            $this->testdata[TabularCollection::class]['user'][] = [
+                'id' => $t,
+                'profile_id' => $profile_id,
+                'email' => $faker->email,
+                'password' => sha1($faker->asciify('**********')),
+                'role' => $faker->randomElement(['user','admin','user','user','user','user','user','moderator','moderator']),
+                'is_active' => $faker->boolean,
+                'created' => $created,
+                'modified' => $created
+            ];
+            $this->testdata[TabularCollection::class]['profile'][] = [
+                'id' => $profile_id,
+                'address' => $faker->streetAddress,
+                'city' => $faker->city,
+                'state' => $faker->stateAbbr,
+                'zipcode' => $faker->postcode,
+                'phone' => $faker->phoneNumber,
+                'bio' => $faker->paragraph,
+                'created' => $created,
+                'modified' => $created
+            ];
+        }
     }
 }
\ No newline at end of file
diff --git a/tests/CSVelte/Collection/MultiCollectionTest.php b/tests/CSVelte/Collection/MultiCollectionTest.php
index 2f43caa..9ddf5e9 100644
--- a/tests/CSVelte/Collection/MultiCollectionTest.php
+++ b/tests/CSVelte/Collection/MultiCollectionTest.php
@@ -121,4 +121,13 @@ public function testMultiContainsSearchesThroughoutAllDimensions()
         // $this->assertFalse($coll->contains($func), 'names');
     }
 
+    public function testMapRunsCallbackAgainstEachItem()
+    {
+        $coll = Collection::factory($this->testdata[MultiCollection::class]['addresses']);
+        $coll2 = $coll->map(function($val) {
+            return strlen($val);
+        });
+        $this->assertEquals([18,22,19,21,20,30,27,14,32,24], $coll2->toArray());
+    }
+
 }
\ No newline at end of file
diff --git a/tests/CSVelte/Collection/TabularCollectionTest.php b/tests/CSVelte/Collection/TabularCollectionTest.php
new file mode 100644
index 0000000..75236fe
--- /dev/null
+++ b/tests/CSVelte/Collection/TabularCollectionTest.php
@@ -0,0 +1,37 @@
+<?php
+namespace CSVelteTest\Collection;
+
+use CSVelte\Collection\AbstractCollection;
+use CSVelte\Collection\Collection;
+use CSVelte\Collection\MultiCollection;
+
+use CSVelte\Collection\TabularCollection;
+use function CSVelte\is_traversable;
+
+class TabularCollectionTest extends AbstractCollectionTest
+{
+    public function testFactoryReturnsTabularCollection()
+    {
+        $coll = Collection::factory($this->testdata[TabularCollection::class]['user']);
+        $this->assertInstanceOf(TabularCollection::class, $coll);
+        $coll2 = Collection::factory($this->testdata[TabularCollection::class]['profile']);
+        $this->assertInstanceOf(TabularCollection::class, $coll2);
+    }
+
+    public function testMapTabularCollection()
+    {
+        $coll = Collection::factory($this->testdata[TabularCollection::class]['user']);
+        $func = function($row) {
+            $this->assertInstanceOf(AbstractCollection::class, $row);
+            return $row->get('email');
+        };
+        $newcoll = $coll->map($func->bindTo($this));
+        $this->assertEquals([
+            'ohauck@bahringer.info',
+            'larry.emard@pacocha.com',
+            'jaylin.mueller@yahoo.com',
+            'gfriesen@hotmail.com',
+            'verla.ohara@dibbert.com'
+        ], $newcoll->toArray());
+    }
+}
\ No newline at end of file