diff --git a/README.md b/README.md
index 5b81f68..34f79ba 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,69 @@
-# FlyFinder
+FlyFinder
+================================================================================================================
+
+FlyFinder is a plugin for [Flysystem](http://flysystem.thephpleague.com/) that will enable you to find files
+based on certain criteria.
+
+FlyFinder can search for files and directories that are hidden, that have a certain extension or that exist in a
+certain path.
+
+## Installation
+
+The easiest way to install this library is with [Composer](https://getcomposer.org) using the following command:
+
+    $ composer require phpdocumentor/flyfinder
+
+## Examples
+
+Ready to dive in and don't want to read through all that text below? Just consult the [examples](examples) folder and
+check which type of action that your want to accomplish.
+
+## Usage
+
+In order to use the FlyFinder plugin you first need a Flyfinder filesystem with an adapter,
+for instance the local adapter.
+
+    use League\Flysystem\Filesystem;
+    use League\Flysystem\Adapter;
+    use Flyfinder\Finder;
+
+    $filesystem = new Filesystem(new Adapter\Local(__DIR__.'/path/to/files/'));
+
+Now you can add the plugin as follows:
+
+    $filesystem->addPlugin(new Finder());
+
+FlyFinder will need specifications to know what to look for. The following specifications are available:
+
+- IsHidden (this specification will return `true` when a file or directory is hidden,
+- HasExtension (this specification will return `true` when a file or directory has the specified extension),
+- InPath (this specification will return `true` when a file is in the given path. Wildcards are allowed.)
+
+Specifications can be instantiated as follows:
+
+    use Flyfinder\Path;
+    use Flyfinder\Specification\IsHidden;
+    use Flyfinder\Specification\HasExtension;
+    use Flyfinder\Specification\InPath;
+
+    $isHidden = new IsHidden();
+    $hasExtension = new HasExtension(['txt']);
+    $inPath = new InPath(new Path('mydir'));
+
+### Combining specifications
+
+You can search on more criteria by combining the specifications. Specifications can be chained as follows:
+
+`$isHidden->andSpecification($hasExtension)` will find all files and directories that are hidden AND have the given
+extension.
+
+`$isHidden->orSpecification($hasExtension)` will find all files and directories that are hidden OR have the given
+extension.
+
+`$isHidden->notSpecification` will find all files and directories that are NOT hidden.
+
+You can also make longer chains like this:
+
+` $specification = $inPath->andSpecification($hasExtension)->andSpecification($isHidden->notSpecification());`
+
+This will find all files in the given path, that have the given extension and are not hidden.
diff --git a/tests/unit/Specification/InPathTest.php b/tests/unit/Specification/InPathTest.php
index 24a7e48..d75415f 100644
--- a/tests/unit/Specification/InPathTest.php
+++ b/tests/unit/Specification/InPathTest.php
@@ -73,7 +73,7 @@ public function testIfSpecificationIsNotSatisfied($dirname)
     }
 
     /**
-     * Data provider for testIfSpecificationIsNotSatisfied. Contains a few valid directory names
+     * Data provider for testIfSpecificationIsNotSatisfied. Contains a few invalid directory names
      *
      * @return array
      */