diff --git a/data/books-4kb.xml b/data/books-4kb.xml
new file mode 100644
--- /dev/null
+++ b/data/books-4kb.xml
@@ -0,0 +1,120 @@
+<?xml version="1.0"?>
+<catalog>
+   <book id="bk101">
+      <author>Gambardella, Matthew</author>
+      <title>XML Developer's Guide</title>
+      <genre>Computer</genre>
+      <price>44.95</price>
+      <publish_date>2000-10-01</publish_date>
+      <description>An in-depth look at creating applications
+      with XML.</description>
+   </book>
+   <book id="bk102">
+      <author>Ralls, Kim</author>
+      <title>Midnight Rain</title>
+      <genre>Fantasy</genre>
+      <price>5.95</price>
+      <publish_date>2000-12-16</publish_date>
+      <description>A former architect battles corporate zombies,
+      an evil sorceress, and her own childhood to become queen
+      of the world.</description>
+   </book>
+   <book id="bk103">
+      <author>Corets, Eva</author>
+      <title>Maeve Ascendant</title>
+      <genre>Fantasy</genre>
+      <price>5.95</price>
+      <publish_date>2000-11-17</publish_date>
+      <description>After the collapse of a nanotechnology
+      society in England, the young survivors lay the
+      foundation for a new society.</description>
+   </book>
+   <book id="bk104">
+      <author>Corets, Eva</author>
+      <title>Oberon's Legacy</title>
+      <genre>Fantasy</genre>
+      <price>5.95</price>
+      <publish_date>2001-03-10</publish_date>
+      <description>In post-apocalypse England, the mysterious
+      agent known only as Oberon helps to create a new life
+      for the inhabitants of London. Sequel to Maeve
+      Ascendant.</description>
+   </book>
+   <book id="bk105">
+      <author>Corets, Eva</author>
+      <title>The Sundered Grail</title>
+      <genre>Fantasy</genre>
+      <price>5.95</price>
+      <publish_date>2001-09-10</publish_date>
+      <description>The two daughters of Maeve, half-sisters,
+      battle one another for control of England. Sequel to
+      Oberon's Legacy.</description>
+   </book>
+   <book id="bk106">
+      <author>Randall, Cynthia</author>
+      <title>Lover Birds</title>
+      <genre>Romance</genre>
+      <price>4.95</price>
+      <publish_date>2000-09-02</publish_date>
+      <description>When Carla meets Paul at an ornithology
+      conference, tempers fly as feathers get ruffled.</description>
+   </book>
+   <book id="bk107">
+      <author>Thurman, Paula</author>
+      <title>Splish Splash</title>
+      <genre>Romance</genre>
+      <price>4.95</price>
+      <publish_date>2000-11-02</publish_date>
+      <description>A deep sea diver finds true love twenty
+      thousand leagues beneath the sea.</description>
+   </book>
+   <book id="bk108">
+      <author>Knorr, Stefan</author>
+      <title>Creepy Crawlies</title>
+      <genre>Horror</genre>
+      <price>4.95</price>
+      <publish_date>2000-12-06</publish_date>
+      <description>An anthology of horror stories about roaches,
+      centipedes, scorpions  and other insects.</description>
+   </book>
+   <book id="bk109">
+      <author>Kress, Peter</author>
+      <title>Paradox Lost</title>
+      <genre>Science Fiction</genre>
+      <price>6.95</price>
+      <publish_date>2000-11-02</publish_date>
+      <description>After an inadvertant trip through a Heisenberg
+      Uncertainty Device, James Salway discovers the problems
+      of being quantum.</description>
+   </book>
+   <book id="bk110">
+      <author>O'Brien, Tim</author>
+      <title>Microsoft .NET: The Programming Bible</title>
+      <genre>Computer</genre>
+      <price>36.95</price>
+      <publish_date>2000-12-09</publish_date>
+      <description>Microsoft's .NET initiative is explored in
+      detail in this deep programmer's reference.</description>
+   </book>
+   <book id="bk111">
+      <author>O'Brien, Tim</author>
+      <title>MSXML3: A Comprehensive Guide</title>
+      <genre>Computer</genre>
+      <price>36.95</price>
+      <publish_date>2000-12-01</publish_date>
+      <description>The Microsoft MSXML3 parser is covered in
+      detail, with attention to XML DOM interfaces, XSLT processing,
+      SAX and more.</description>
+   </book>
+   <book id="bk112">
+      <author>Galos, Mike</author>
+      <title>Visual Studio 7: A Comprehensive Guide</title>
+      <genre>Computer</genre>
+      <price>49.95</price>
+      <publish_date>2001-04-16</publish_date>
+      <description>Microsoft Visual Studio 7 is explored in depth,
+      looking at how Visual Basic, Visual C++, C#, and ASP+ are
+      integrated into a comprehensive development
+      environment.</description>
+   </book>
+</catalog>
diff --git a/xeno.cabal b/xeno.cabal
--- a/xeno.cabal
+++ b/xeno.cabal
@@ -1,5 +1,5 @@
 name: xeno
-version: 0.4
+version: 0.4.1
 synopsis: A fast event-based XML parser in pure Haskell
 description: A fast, low-memory use, event-based XML parser in pure Haskell.  
 build-type: Simple
@@ -13,7 +13,8 @@
 tested-with:         GHC == 8.0.1, GHC == 8.2.2, GHC == 8.4.2, GHC == 8.4.4, GHC == 8.6.5
 extra-source-files:  README.md
                      CHANGELOG.markdown
-                     CONTRIBUTORS.md                             
+                     CONTRIBUTORS.md
+data-files: data/books-4kb.xml
 
 source-repository head
   type:     git
@@ -27,6 +28,7 @@
   hs-source-dirs: src
   ghc-options: -Wall -O2
   exposed-modules: Xeno.SAX, Xeno.DOM, Xeno.DOM.Internal, Xeno.DOM.Robust, Xeno.Types, Xeno.Errors
+                   
   other-modules: Control.Spork
   build-depends: base >= 4.7 && < 5
                , bytestring >= 0.10.8
@@ -38,7 +40,6 @@
   default-language: Haskell2010
 
 test-suite xeno-test
-           
   type: exitcode-stdio-1.0
   hs-source-dirs: test
   main-is: Main.hs