diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,10 @@
 # Changelog for yaml-pretty-extras
 
+## v0.0.2.0
+
+Add haddock documentation.
+Drop PrettyYamlException type.
+
 ## v0.0.1.3
 
 Add decodeFileThrow, decodeFileThrowLogged and encodeFilePrettyLogged functions
diff --git a/src/Data/Yaml/Pretty/Extras.hs b/src/Data/Yaml/Pretty/Extras.hs
--- a/src/Data/Yaml/Pretty/Extras.hs
+++ b/src/Data/Yaml/Pretty/Extras.hs
@@ -1,56 +1,77 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module     : Data.Yaml.Pretty.Extras
+-- Copyright  : (c) Daniel Firth 2018
+-- License    : BSD3
+-- Maintainer : locallycompact@gmail.com
+-- Stability  : experimental
+--
+-- This file defines yaml pretty printers with additional MonadThrow helpers
+-- and RIO display functionality.
+--
+-----------------------------------------------------------------------------
 module Data.Yaml.Pretty.Extras
   ( module Data.Yaml
   , module Data.Yaml.Pretty
+
+  -- * Yaml Pretty Printers
   , ToPrettyYaml(..)
   , encodeFilePretty
-  , displayPrettyYaml
-  , PrettyYamlException(..)
+
+  -- * RIO Helpers (Codecs and Logging)
   , decodeFileThrow
+  , displayPrettyYaml
   , decodeFileThrowLogged
   , encodeFilePrettyLogged
   )
 where
 
-import           Control.Error.Safe
-import           Control.Monad.Except
 import           Data.Typeable
 import           Data.Yaml
 import           Data.Yaml.Pretty
-import           RIO                     hiding ( tryJust )
+import           RIO
 import qualified RIO.ByteString                as BS
 import           RIO.List
 
-data PrettyYamlException = FieldNotListed Text [Text]
-  deriving (Typeable)
+listElemCmp as x y =
+  fromMaybe LT $ liftA2 compare (elemIndex x as) (elemIndex y as)
 
-instance Show PrettyYamlException where
-  show (FieldNotListed x as) = "Could not find field " ++ show x ++ "in " ++ show as
+{- | Augments ToJSON by allowing specification of a fieldOrder for printing.
 
-exceptElemIndex x as = tryJust (FieldNotListed x as) (elemIndex x as)
+   >  data Person = { name :: Text, age :: Int, job :: Text }
+   >    deriving (Eq, FromJSON, Generic, Show, ToJSON)
+   >
+   >  instance ToPrettyYaml Person where
+   >   fieldOrder = const ["name", "age", "job"]
 
-listElemCmp as x y = either (error . show) id $ runExcept $ liftA2
-  compare
-  (exceptElemIndex x as)
-  (exceptElemIndex y as)
+-}
 
 class ToJSON a => ToPrettyYaml a where
+  -- | The order that detected fields should be printed in, fields that aren't found in this function
+  -- will be printed non-deterministically.
   fieldOrder :: a -> [Text]
 
+  -- | Whether to drop null elements on this type.
   dropNull :: a -> Bool
   dropNull = const True
 
+  -- | Prints a Yaml ByteString according to specified fieldOrder.
   toPrettyYaml :: a -> BS.ByteString
   toPrettyYaml = encodePretty =<< liftM2 setConfDropNull dropNull (flip setConfCompare defConfig . listElemCmp . fieldOrder)
 
+-- | A version of Data.Yaml's encodeFile using `toPrettyYaml` instead of `toJSON`
 encodeFilePretty :: (MonadIO m) => ToPrettyYaml a => FilePath -> a -> m ()
 encodeFilePretty f x = BS.writeFile f (toPrettyYaml x)
 
+-- | Displays a ToPrettyYaml instance as Utf8, for use with RIO log functions
 displayPrettyYaml :: ToPrettyYaml a => a -> Utf8Builder
 displayPrettyYaml = displayBytesUtf8 . toPrettyYaml
 
+-- | A version of Data.Yaml's decodeFileEither lifted to MonadThrow
 decodeFileThrow :: (MonadIO m, FromJSON c, MonadThrow m) => FilePath -> m c
 decodeFileThrow = liftIO . decodeFileEither >=> either throwM return
 
+-- | decodeFileThrow with info logging, reports what was parsed via RIO's logInfo
 decodeFileThrowLogged
   :: ( MonadReader env m
      , MonadThrow m
@@ -75,6 +96,7 @@
     ]
   return t
 
+-- | encodeFilePretty with info logging, reports what was saved to disk via RIO's logInfo
 encodeFilePrettyLogged
   :: ( MonadReader env m
      , MonadThrow m
diff --git a/yaml-pretty-extras.cabal b/yaml-pretty-extras.cabal
--- a/yaml-pretty-extras.cabal
+++ b/yaml-pretty-extras.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 02fcaf6c7200aae215dad66d520b577e59eee386c8f339577cae1535d75f6775
+-- hash: 010d745442891bcf2faf89ea29834fe82716bfc1ab9555e945b01d2990a228d6
 
 name:           yaml-pretty-extras
-version:        0.0.1.3
+version:        0.0.2.0
 synopsis:       Extra functionality for pretty printing Yaml documents.
 description:    Extra functionality for pretty printing Yaml documents. Allows precise field ordering.
 category:       Data
@@ -34,11 +34,7 @@
   default-extensions: AutoDeriveTypeable BangPatterns BinaryLiterals ConstraintKinds DataKinds DefaultSignatures DeriveDataTypeable DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable DoAndIfThenElse EmptyDataDecls ExistentialQuantification FlexibleContexts FlexibleInstances FunctionalDependencies GADTs GeneralizedNewtypeDeriving InstanceSigs KindSignatures LambdaCase MonadFailDesugaring MultiParamTypeClasses MultiWayIf NamedFieldPuns NoImplicitPrelude OverloadedStrings PartialTypeSignatures PatternGuards PolyKinds RankNTypes RecordWildCards ScopedTypeVariables StandaloneDeriving TupleSections TypeFamilies TypeSynonymInstances ViewPatterns
   build-depends:
       base >=4.7 && <5
-    , bytestring
-    , errors
-    , mtl
     , rio
-    , text
     , yaml
   default-language: Haskell2010
 
@@ -53,12 +49,8 @@
   ghc-options: -threaded -rtsopts -with-rtsopts=-N
   build-depends:
       base >=4.7 && <5
-    , bytestring
-    , errors
     , hspec
-    , mtl
     , rio
-    , text
     , yaml
     , yaml-pretty-extras
   default-language: Haskell2010