diff --git a/examples/HistogramBarChart.elm b/examples/HistogramBarChart.elm
index a43dd10..13bf06f 100644
--- a/examples/HistogramBarChart.elm
+++ b/examples/HistogramBarChart.elm
@@ -1,6 +1,6 @@
 module HistogramBarChart exposing (data, main)
 
-{-| This module shows how to build a simple bar chart.
+{-| Examples for the HistogramBar module
 -}
 
 import Axis
@@ -76,6 +76,11 @@ attrs =
     ]
 
 
+type alias PreProcessedData =
+    { bucket : Float, count : Int }
+
+
+preProcessedData : List PreProcessedData
 preProcessedData =
     [ { bucket = 0.8
       , count = 10000
@@ -114,11 +119,7 @@ preProcessedData =
         |> List.sortBy .bucket
 
 
-type alias Data =
-    Float
-
-
-data : List Data
+data : List Float
 data =
     [ 0.01
     , 0.02
@@ -140,24 +141,17 @@ data =
     , 0.65
     , 0.75
     , 0.81
-    , 0.9
-    , 0.91
-    , 0.99
     ]
 
 
-accessor : data -> data
-accessor =
-    identity
-
-
 steps : List Float
 steps =
     [ 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1 ]
 
 
+dataAccessor : Histo.AccessorHistogram Float
 dataAccessor =
-    Histo.dataAccessor steps accessor
+    Histo.dataAccessor steps identity
 
 
 histo : Html msg
@@ -174,6 +168,7 @@ histo =
         |> Histo.render ( data, dataAccessor )
 
 
+preProcessedDataAccessor : Histo.AccessorHistogram PreProcessedData
 preProcessedDataAccessor =
     Histo.preProcessedDataAccessor
         (\d ->
diff --git a/src/Chart/HistogramBar.elm b/src/Chart/HistogramBar.elm
index a74e8e4..ac053e0 100644
--- a/src/Chart/HistogramBar.elm
+++ b/src/Chart/HistogramBar.elm
@@ -1,5 +1,5 @@
 module Chart.HistogramBar exposing
-    ( dataAccessor, preProcessedDataAccessor
+    ( AccessorHistogram, dataAccessor, preProcessedDataAccessor
     , init
     , render
     , Config, RequiredConfig
@@ -12,10 +12,14 @@ module Chart.HistogramBar exposing
 
 The histogram bar chart can both generate the histogram data automatically or accept preprocessed data.
 
+⚠ This module is still incomplete and does not expose all the flexibility that elm-visialization offers. Histogram generation for now always expects a list of steps in the data accessor and a domain in the config. This will likely change in the future.
+
+⚠ When passing steps one should also explicity pass a domain that matches the steps. This will likely change in the future.
+
 
 # Data Accessors
 
-@docs dataAccessor, preProcessedDataAccessor
+@docs AccessorHistogram, dataAccessor, preProcessedDataAccessor
 
 
 # Chart Initialization
@@ -83,6 +87,12 @@ type alias Steps =
     List Float
 
 
+{-| The data accessor for the histogram
+-}
+type alias AccessorHistogram data =
+    Type.AccessorHistogram data
+
+
 {-| The data accessor for generating a histogram.
 It takes a config that is separate from the general config,
 because it is only used when generating a histogram and not for bucketed pre-processed data.
@@ -104,9 +114,12 @@ dataAccessor bins acc =
 Meaning the data has already been bucketed and counted.
 `values` here is not used and always passed as an empty array.
 
+The data must be compatible with the [Bin](https://package.elm-lang.org/packages/gampleman/elm-visualization/latest/Histogram#Bin) data type from elm-visualization.
+
     preProcessedDataAccessor =
         Histo.preProcessedDataAccessor
             (\d ->
+                -- This is a Bin data type from elm-visualization
                 { x0 = d.bucket
                 , x1 = d.bucket + 0.1
                 , values = []