diff --git a/CHANGELOG.md b/CHANGELOG.md
index cf6bec6..1c3b098 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 All notable changes to `Enumhancer` will be documented in this file
 
+## 1.0.1 - 2022 02-16
+
+- You can now define a mapper in a method
+- When you use an empty string or null in mappable, it will return null now.
+
 ## 1.0.0 - 2022-02-15
 
 - initial release
diff --git a/docs/mappers.md b/docs/mappers.md
index ea8f927..059f352 100644
--- a/docs/mappers.md
+++ b/docs/mappers.md
@@ -23,6 +23,9 @@ enum YourEnum {
     case NOT_MAPPED;
  
 }
+```
+
+```php
 use Henzeb\Enumhancer\Contracts\Mapper;
 
 class YourMapper extends Mapper {
@@ -66,6 +69,7 @@ YourEnum::makeOrReport(['unknown', 'NOT_MAPPED'], new YourMapper()); // will ret
 Note: See for the `makeOrReport` method: [Reporters](reporters.md)
 
 ### Shared Mapper
+
 You can also use one `Mapper` for multiple enums. Just use the FQCN of the enum
 as a key in your array, like below:
 
@@ -87,4 +91,24 @@ class YourMapper extends Mapper {
 ```
 And then use the commands as shown in the `example` section.
 
-Note: You can also mix them up, if some enums may share a value or a name.
+## The mapper method
+
+In case you don't want to add the mapper all the time, you can also specify a `mapper` method that returns your mapper.
+
+```php
+use Henzeb\Enumhancer\Concerns\Mappers;
+use Henzeb\Enumhancer\Contracts\Mapper;
+
+enum YourEnum {
+    use Mappers;
+    
+    case ENUM;
+    case NO_LABEL;
+    case NOT_MAPPED;
+    
+    protected static mapper(): ?Mapper
+    {
+        return new YourMapper();
+    }
+}
+```
diff --git a/docs/reporters.md b/docs/reporters.md
index e1c828d..efa1edd 100644
--- a/docs/reporters.md
+++ b/docs/reporters.md
@@ -19,7 +19,7 @@ use Henzeb\Enumhancer\Contracts\Reporter;
 
 class YourReporter implements Reporter {
 
-    public function report(string $enum, string $key, ?BackedEnum $context) : void
+    public function report(string $enum, ?string $key, ?BackedEnum $context) : void
     {
         // TODO: Implement report() method.
     }
diff --git a/src/Concerns/Mappers.php b/src/Concerns/Mappers.php
index f8598a0..264e787 100644
--- a/src/Concerns/Mappers.php
+++ b/src/Concerns/Mappers.php
@@ -10,14 +10,27 @@
 
 trait Mappers
 {
-    final protected static function reporter():?Reporter
+    protected static function reporter():?Reporter
     {
         return EnumReporter::get();
     }
 
-    private static function map(string|int|null $value, Mapper|string $mapper = null): string
+    protected static function mapper(): ?Mapper
     {
-         return ($mapper) ?
+        return null;
+    }
+
+    private static function map(string|int|null $value, Mapper|string $mapper = null): ?string
+    {
+        if(null === $value) {
+            return null;
+        }
+
+        $value = ($mapper) ?
+            $mapper->map($value, static::class) ?? $value
+            : $value;
+
+        return ($mapper = self::mapper()) ?
             $mapper->map($value, static::class) ?? $value
             : $value;
     }
diff --git a/src/Contracts/Reporter.php b/src/Contracts/Reporter.php
index b78be7b..531460c 100644
--- a/src/Contracts/Reporter.php
+++ b/src/Contracts/Reporter.php
@@ -5,5 +5,5 @@
 
 interface Reporter
 {
-    public function report(string $enum, string $key, ?BackedEnum $context): void;
+    public function report(string $enum, ?string $key, ?BackedEnum $context): void;
 }
diff --git a/src/Laravel/Reporters/LaravelLogReporter.php b/src/Laravel/Reporters/LaravelLogReporter.php
index f536f15..037ddc9 100644
--- a/src/Laravel/Reporters/LaravelLogReporter.php
+++ b/src/Laravel/Reporters/LaravelLogReporter.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Henzeb\Enumhancer\Laravel\Reporters;
 
 use BackedEnum;
@@ -9,11 +10,11 @@
 class LaravelLogReporter implements Reporter
 {
 
-    public function report(string $enum, string $key, ?BackedEnum $context): void
+    public function report(string $enum, ?string $key, ?BackedEnum $context): void
     {
         Log::warning(
             class_basename($enum)
-            . ' does not have \'' . $key . '\'',
+            . ($key ? ' does not have \'' . $key . '\'' : ': A null value was passed'),
             array_filter([
                 'class' => class_basename($enum),
                 'key' => $key,
diff --git a/tests/Fixtures/EnhancedEnum.php b/tests/Fixtures/EnhancedEnum.php
index 8c62b14..97bf16a 100644
--- a/tests/Fixtures/EnhancedEnum.php
+++ b/tests/Fixtures/EnhancedEnum.php
@@ -3,6 +3,7 @@
 namespace Henzeb\Enumhancer\Tests\Fixtures;
 
 use Henzeb\Enumhancer\Concerns\Enhancers;
+use Henzeb\Enumhancer\Contracts\Mapper;
 
 enum EnhancedEnum: string
 {
@@ -17,4 +18,18 @@ protected function labels(): array
             'ENUM'=>'My label'
         ];
     }
+
+    protected static function mapper(): ?Mapper
+    {
+        return new class extends Mapper
+        {
+
+            protected function mappable(): array
+            {
+                return [
+                    'anotherMappedEnum' => EnhancedEnum::ENUM
+                ];
+            }
+        };
+    }
 }
diff --git a/tests/Unit/Concerns/MappersTest.php b/tests/Unit/Concerns/MappersTest.php
index cd87576..28d6e91 100644
--- a/tests/Unit/Concerns/MappersTest.php
+++ b/tests/Unit/Concerns/MappersTest.php
@@ -45,6 +45,20 @@ public function testMakeShouldMap()
         );
     }
 
+    public function testMakeShouldNotMapWhenNull()
+    {
+        $this->expectError();
+        EnhancedEnum::make(null, $this->getMapper());
+    }
+
+    public function testMakeShouldMapWithoutMapperGiven()
+    {
+        $this->assertEquals(
+            EnhancedEnum::ENUM,
+            EnhancedEnum::make('anotherMappedEnum')
+        );
+    }
+
     public function testMakeShouldErrorWithMap()
     {
         $this->expectError();
@@ -64,6 +78,14 @@ public function testTryMakeShouldReturnNullWithoutMapper()
         $this->assertNull(EnhancedEnum::tryMake('mappedEnum'));
     }
 
+    public function testTryMakeShouldNotMapWhenNull()
+    {
+
+        $this->assertNull(
+            EnhancedEnum::tryMake(null, $this->getMapper())
+        );
+    }
+
     public function testTryMakeShouldMap()
     {
         $this->assertEquals(
@@ -72,11 +94,27 @@ public function testTryMakeShouldMap()
         );
     }
 
+    public function testTryMakeShouldMapWithoutMapperGiven()
+    {
+        $this->assertEquals(
+            EnhancedEnum::ENUM,
+            EnhancedEnum::tryMake('anotherMappedEnum')
+        );
+    }
+
+
     public function testTryMakeShouldReturnNullWithMap()
     {
         $this->assertNull(EnhancedEnum::tryMake('not existing', $this->getMapper()));
     }
 
+
+    public function testMakeArrayShouldNotMapWhenNull()
+    {
+        $this->expectError();
+        EnhancedEnum::makeArray([null], $this->getMapper());
+    }
+
     public function testMakeArrayShouldWorkWithoutMapper()
     {
         $this->assertEquals(
@@ -99,6 +137,15 @@ public function testMakeArrayShouldWorkWitMapper()
         );
     }
 
+
+    public function testMakeArrayShouldMapWithoutMapperGiven()
+    {
+        $this->assertEquals(
+            [EnhancedEnum::ENUM],
+            EnhancedEnum::MakeArray(['anotherMappedEnum'])
+        );
+    }
+
     public function testMakeArrayShouldThrowErrorWitMapper()
     {
         $this->expectError();
@@ -113,6 +160,11 @@ public function testTryMakeArrayShouldWorkWithoutMapper()
         );
     }
 
+    public function testTryMakeArrayShouldNotMapWhenNull()
+    {
+        $this->assertEquals([], EnhancedEnum::tryMakeArray([null], $this->getMapper()));
+    }
+
     public function testTryMakeArrayShouldWorkWitMapper()
     {
         $this->assertEquals(
@@ -120,4 +172,12 @@ public function testTryMakeArrayShouldWorkWitMapper()
             EnhancedEnum::tryMakeArray(['mappedEnum','DoesNotExist'], $this->getMapper())
         );
     }
+
+    public function testTryMakeArrayShouldMapWithoutMapperGiven()
+    {
+        $this->assertEquals(
+            [EnhancedEnum::ENUM],
+            EnhancedEnum::TryMakeArray(['anotherMappedEnum'])
+        );
+    }
 }
diff --git a/tests/Unit/Concerns/ReportersTest.php b/tests/Unit/Concerns/ReportersTest.php
index 278b7fe..b8d56d4 100644
--- a/tests/Unit/Concerns/ReportersTest.php
+++ b/tests/Unit/Concerns/ReportersTest.php
@@ -157,7 +157,7 @@ public function testReportWithContext(string $enum)
     {
         $reporter = new class implements Reporter {
 
-            public function report(string $enum, string $key, ?BackedEnum $context): void
+            public function report(string $enum, ?string $key, ?BackedEnum $context): void
             {
                 enum_exists($context::class);
             }
@@ -179,7 +179,7 @@ public function testMakeOrReportArrayWithContext(string $enum)
     {
         $reporter = new class implements Reporter {
 
-            public function report(string $enum, string $key, ?BackedEnum $context): void
+            public function report(string $enum, ?string $key, ?BackedEnum $context): void
             {
                 enum_exists($context::class);
             }
diff --git a/tests/Unit/Helpers/EnumReporterTest.php b/tests/Unit/Helpers/EnumReporterTest.php
index 906f485..48e4b35 100644
--- a/tests/Unit/Helpers/EnumReporterTest.php
+++ b/tests/Unit/Helpers/EnumReporterTest.php
@@ -22,7 +22,7 @@ public function testSetReporter() {
         EnumReporter::set(null);
 
         $reporter = new class implements Reporter {
-            public function report(string $enum, string $key, ?BackedEnum $context): void {}
+            public function report(string $enum, ?string $key, ?BackedEnum $context): void {}
         };
 
         EnumReporter::set($reporter);