diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+Version 0.1.1.1
+---------------
+
+*August 31, 2018*
+
+<https://github.com/mstksg/backprop/releases/tag/v0.1.1.1>
+
+*   Exported *binView*, which was mistakenly hidden.
+
 Version 0.1.1.0
 ---------------
 
diff --git a/bins.cabal b/bins.cabal
--- a/bins.cabal
+++ b/bins.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 93a048b815dea1b0e463e995493b1a2cb36ccbd9cf1e2eb977d48e689f194e5d
+-- hash: d3a0afd067f13ba2e886ad66828fdb40215329e79a93de097003e945e182473d
 
 name:           bins
-version:        0.1.1.0
+version:        0.1.1.1
 synopsis:       Aggregate continuous values into discrete bins
 description:    Please see the README on GitHub at <https://github.com/mstksg/bins#readme>
 category:       Math
diff --git a/src/Data/Bin.hs b/src/Data/Bin.hs
--- a/src/Data/Bin.hs
+++ b/src/Data/Bin.hs
@@ -34,8 +34,10 @@
 
 module Data.Bin (
   -- * Specifying the binning
-    BinView, linView, logView, gaussView
-  , BinSpec(..), linBS, logBS, gaussBS
+    BinSpec(..), linBS, logBS, gaussBS
+  -- ** 'BinView'
+  , BinView, binView, linView, logView, gaussView
+  -- ** Inspecting 'BinSpec'
   , binSpecIntervals
   -- * Creating and manipulating bins
   , Bin, Binner, withBinner, fromFin
@@ -70,7 +72,7 @@
 -- | A bidirectional "view" to transform the data type before binning.
 --
 -- See 'linView' for a linear binning, and 'logView' for a logarithmic
--- binning.
+-- binning.  You can construct your own custom transformer using 'binView'.
 --
 -- This type is essentially 'Iso' from the /lens/ library, and any 'Iso''
 -- from lens can be used here.  However, it is important that all of these
@@ -135,7 +137,11 @@
 -- @
 -- 'linBS' @5 0 10
 -- @
-linBS :: forall n a. a -> a -> BinSpec n a a
+linBS
+    :: forall n a. ()
+    => a                            -- ^ Lower bound
+    -> a                            -- ^ Upper bound
+    -> BinSpec n a a
 linBS mn mx = BS mn mx linView
 
 -- | Convenient constructor for a 'BinSpec' for a logarithmic scaling.
@@ -145,7 +151,11 @@
 -- @
 -- 'logBS' @5 0 10
 -- @
-logBS :: forall n a. Floating a => a -> a -> BinSpec n a a
+logBS
+    :: forall n a. Floating a
+    => a                            -- ^ Lower bound
+    -> a                            -- ^ Upper bound
+    -> BinSpec n a a
 logBS mn mx = BS mn mx logView
 
 -- | Convenient constructor for a 'BinSpec' for a gaussian scaling.  Uses
@@ -154,13 +164,15 @@
 -- Meant to be used with type application syntax:
 --
 -- @
--- 'gaussBS' @5 0 10
+-- 'gaussBS' @5 3 0 10
 -- @
+--
+-- indicates that you want 5 bins.
 gaussBS
     :: forall n a. RealFrac a
-    => a
-    -> a
-    -> a
+    => a                            -- ^ Standard Deviation
+    -> a                            -- ^ Lower bound
+    -> a                            -- ^ Upper bound
     -> BinSpec n a Double
 gaussBS σ mn mx = BS mn mx (gaussView ((mn + mx)/2) σ)
 
@@ -279,8 +291,7 @@
 type Binner s n a = a -> Bin s n
 
 -- | With a 'BinSpec', give a "binning function" that you can use to create
--- bins within a continuation.  The binning function is meant to be used
--- with TypeApplications to specify how many bins to use:
+-- bins within a continuation.
 --
 -- @
 -- 'withBinner' myBinSpec $ \toBin ->
@@ -441,7 +452,7 @@
 --
 -- To be able to "unify" two 'Bin's inside a 'SomeBin', use 'sameBinSpec'
 -- to verify that the two 'SomeBin's were created with the same 'BinSpec'.
-data SomeBin a n = forall s b. (Fractional b, Reifies s (BinSpec n a b)) 
+data SomeBin a n = forall s b. (Fractional b, Reifies s (BinSpec n a b))
     => SomeBin { getSomeBin :: Bin s n }
 
 deriving instance (KnownNat n, Show a) => Show (SomeBin a n)