diff --git a/ChangeLog.md b/ChangeLog.md
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+++ b/ChangeLog.md
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+# Changelog for ixset-typed-cassava
+
+## v0.0.1.0
+
+* Add `Ix` versions of `encodeByName` and `decodeByName`.
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
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+Copyright Daniel Firth (c) 2020
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Daniel Firth nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
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--- /dev/null
+++ b/README.md
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+# ixset-typed-cassava
+
+Convenience functions for decoding CSVs directly to IxSet.
diff --git a/ixset-typed-cassava.cabal b/ixset-typed-cassava.cabal
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--- /dev/null
+++ b/ixset-typed-cassava.cabal
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+cabal-version: 1.12
+
+-- This file has been generated from package.yaml by hpack version 0.34.4.
+--
+-- see: https://github.com/sol/hpack
+
+name:           ixset-typed-cassava
+version:        0.0.1.0
+synopsis:       cassava encoding and decoding via ixset-typed
+description:    cassava encoding and decoding via ixset-typed
+category:       CSV, Data
+author:         Daniel Firth
+maintainer:     dan.firth@homtopic.tech
+copyright:      Daniel Firth
+license:        MIT
+license-file:   LICENSE
+build-type:     Simple
+extra-source-files:
+    README.md
+    ChangeLog.md
+
+source-repository head
+  type: git
+  location: https://gitlab.homotopic.tech/haskell/ixset-typed-cassava
+
+library
+  exposed-modules:
+      Data.Csv.IxSet.Typed
+  other-modules:
+      Paths_ixset_typed_cassava
+  hs-source-dirs:
+      src
+  build-depends:
+      base >=4.7 && <5
+    , bytestring
+    , cassava >=0.5.2.0 && <0.6
+    , ixset-typed >=0.4 && <0.6
+    , vector
+  default-language: Haskell2010
diff --git a/src/Data/Csv/IxSet/Typed.hs b/src/Data/Csv/IxSet/Typed.hs
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--- /dev/null
+++ b/src/Data/Csv/IxSet/Typed.hs
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+module Data.Csv.IxSet.Typed (decodeByName, encodeByName) where
+
+import Data.ByteString.Lazy
+import Data.Csv
+import Data.IxSet.Typed as Ix
+import Data.Vector as V
+
+-- Like `Data.Csv.decodeByName` but for `IxSet`.
+--
+-- @since 0.0.1.0
+decodeByName :: (Ix.Indexable ixs xs, FromNamedRecord xs) => ByteString -> Either String (Header, Ix.IxSet ixs xs)
+decodeByName = fmap (fmap (Ix.fromList . V.toList)) . Data.Csv.decodeByName
+
+-- Like `Data.Csv.encodeByName` but for `IxSet`.
+--
+-- @since 0.0.1.0
+encodeByName :: (Ix.Indexable ixs xs, ToNamedRecord xs) => Header -> Ix.IxSet ixs xs -> ByteString
+encodeByName h = Data.Csv.encodeByName h . Ix.toList