diff --git a/Chapter 1/Assets, Plugins and Colour Schemes.w b/Chapter_1/Assets, Plugins and Colour Schemes.w similarity index 100% rename from Chapter 1/Assets, Plugins and Colour Schemes.w rename to Chapter_1/Assets, Plugins and Colour Schemes.w diff --git a/Chapter 1/Basics.w b/Chapter_1/Basics.w similarity index 100% rename from Chapter 1/Basics.w rename to Chapter_1/Basics.w diff --git a/Chapter 1/Configuration.w b/Chapter_1/Configuration.w similarity index 100% rename from Chapter 1/Configuration.w rename to Chapter_1/Configuration.w diff --git a/Chapter 1/Patterns.w b/Chapter_1/Patterns.w similarity index 100% rename from Chapter 1/Patterns.w rename to Chapter_1/Patterns.w diff --git a/Chapter 1/Program Control.w b/Chapter_1/Program Control.w similarity index 100% rename from Chapter 1/Program Control.w rename to Chapter_1/Program Control.w diff --git a/Chapter 1/The Swarm.w b/Chapter_1/The Swarm.w similarity index 100% rename from Chapter 1/The Swarm.w rename to Chapter_1/The Swarm.w diff --git a/Chapter 2/Enumerated Constants.w b/Chapter_2/Enumerated Constants.w similarity index 100% rename from Chapter 2/Enumerated Constants.w rename to Chapter_2/Enumerated Constants.w diff --git a/Chapter 2/Line Categories.w b/Chapter_2/Line Categories.w similarity index 100% rename from Chapter 2/Line Categories.w rename to Chapter_2/Line Categories.w diff --git a/Chapter 2/Paragraph Macros.w b/Chapter_2/Paragraph Macros.w similarity index 100% rename from Chapter 2/Paragraph Macros.w rename to Chapter_2/Paragraph Macros.w diff --git a/Chapter 2/Paragraph Numbering.w b/Chapter_2/Paragraph Numbering.w similarity index 100% rename from Chapter 2/Paragraph Numbering.w rename to Chapter_2/Paragraph Numbering.w diff --git a/Chapter 2/Tags.w b/Chapter_2/Tags.w similarity index 100% rename from Chapter 2/Tags.w rename to Chapter_2/Tags.w diff --git a/Chapter 2/The Parser.w b/Chapter_2/The Parser.w similarity index 100% rename from Chapter 2/The Parser.w rename to Chapter_2/The Parser.w diff --git a/Chapter 2/The Reader.w b/Chapter_2/The Reader.w similarity index 100% rename from Chapter 2/The Reader.w rename to Chapter_2/The Reader.w diff --git a/Chapter 3/The Analyser.w b/Chapter_3/The Analyser.w similarity index 100% rename from Chapter 3/The Analyser.w rename to Chapter_3/The Analyser.w diff --git a/Chapter 3/The Collater.w b/Chapter_3/The Collater.w similarity index 100% rename from Chapter 3/The Collater.w rename to Chapter_3/The Collater.w diff --git a/Chapter 3/The Tangler.w b/Chapter_3/The Tangler.w similarity index 100% rename from Chapter 3/The Tangler.w rename to Chapter_3/The Tangler.w diff --git a/Chapter 3/The Weaver of Text.w b/Chapter_3/The Weaver of Text.w similarity index 100% rename from Chapter 3/The Weaver of Text.w rename to Chapter_3/The Weaver of Text.w diff --git a/Chapter 3/The Weaver.w b/Chapter_3/The Weaver.w similarity index 100% rename from Chapter 3/The Weaver.w rename to Chapter_3/The Weaver.w diff --git a/Chapter 4/ACME 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a/Chapter 4/Types and Functions.w b/Chapter_4/Types and Functions.w similarity index 100% rename from Chapter 4/Types and Functions.w rename to Chapter_4/Types and Functions.w diff --git a/Chapter 5/Debugging Format.w b/Chapter_5/Debugging Format.w similarity index 100% rename from Chapter 5/Debugging Format.w rename to Chapter_5/Debugging Format.w diff --git a/Chapter 5/Format Methods.w b/Chapter_5/Format Methods.w similarity index 100% rename from Chapter 5/Format Methods.w rename to Chapter_5/Format Methods.w diff --git a/Chapter 5/HTML Formats.w b/Chapter_5/HTML Formats.w similarity index 100% rename from Chapter 5/HTML Formats.w rename to Chapter_5/HTML Formats.w diff --git a/Chapter 5/Plain Text Format.w b/Chapter_5/Plain Text Format.w similarity index 100% rename from Chapter 5/Plain Text Format.w rename to Chapter_5/Plain Text Format.w diff --git a/Chapter 5/TeX Format.w b/Chapter_5/TeX Format.w similarity index 100% rename from Chapter 5/TeX Format.w rename to Chapter_5/TeX 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