diff --git a/lib/dark_magic/map.ex b/lib/dark_magic/map.ex
index a14b06f..cd6b4e8 100644
--- a/lib/dark_magic/map.ex
+++ b/lib/dark_magic/map.ex
@@ -11,6 +11,12 @@ defmodule DarkMagic.Map do
 
       iex> DarkMagic.Map.deep_merge(%{a: %{f: %{a: 9}}}, %{a: %{c: 2, f: %{b: 3}}})
       %{a: %{c: 2, f: %{a: 9, b: 3}}}
+
+      iex> DarkMagic.Map.ivert(%{"a"=>1, "b"=>2, "c"=>3, "d"=>4})
+      %{1=>"a", 2=>"b", 3=>"c", 4=>"d"}
+
+      iex> DarkMagic.Map.stringify_keys(%{ 1 => "b", "c"=>"d", :f=>"t"})
+      %{"1"=>"b", "c"=>"d", "f"=>"t"}
   """
   def deep_merge(first_map, second_map) when is_map(first_map) and is_map(second_map) do
     Map.merge(first_map, second_map, fn(_, map_a, map_b) -> deep_merge(map_a, map_b) end)
@@ -19,4 +25,16 @@ defmodule DarkMagic.Map do
   def deep_merge(first_map, second_map) do
     second_map
   end
+
+  def ivert(map) do
+    Enum.into(Enum.map(map, fn({key, value})->
+     {key, value}={value, key}
+    end), %{})
+  end
+
+  def stringify_keys(map) do
+    Enum.into(Enum.map(map, fn({key, value})->
+      {key = to_string(key), value}
+    end) ,%{})
+  end
 end