-
-
-
\ No newline at end of file
diff --git a/dev-assets/guidebook/docs/about.md b/dev-assets/guidebook/docs/about.md
new file mode 100644
index 0000000..e501178
--- /dev/null
+++ b/dev-assets/guidebook/docs/about.md
@@ -0,0 +1,3 @@
+# About Project: Doodle
+
+Lorem ipsum.
diff --git a/dev-assets/guidebook/docs/custom-doodads/edit-external.md b/dev-assets/guidebook/docs/custom-doodads/edit-external.md
new file mode 100644
index 0000000..3e253ff
--- /dev/null
+++ b/dev-assets/guidebook/docs/custom-doodads/edit-external.md
@@ -0,0 +1,20 @@
+# Drawing Doodads in an External Program
+
+Doodad sprites can be drawn using any image editor and saved as .png files
+(with transparency). You can then create a doodad file from your series of
+PNG images.
+
+Most of the built-in doodads that ship with the game were created in this way.
+
+## Create a Doodad from Images
+
+Save each frame of your doodad as a separate PNG image and then use the `doodad`
+command-line tool to convert them to a `.doodad` file.
+
+```bash
+# Usage:
+doodad convert [options]
+
+# Example:
+doodad convert door-closed.png door-open.png door.doodad
+```
diff --git a/dev-assets/guidebook/docs/custom-doodads/edit-in-game.md b/dev-assets/guidebook/docs/custom-doodads/edit-in-game.md
new file mode 100644
index 0000000..f26901e
--- /dev/null
+++ b/dev-assets/guidebook/docs/custom-doodads/edit-in-game.md
@@ -0,0 +1,27 @@
+# Drawing a Doodad In-Game
+
+Project: Doodle has some **limited** support to draw your doodad sprites
+in-game. Currently you can only draw one frame (image) for the doodad
+and save it to disk.
+
+To start a new doodad, open the game and enter the level editor.
+
+Select the "New Doodad" button at the top of the screen to start drawing a
+new doodad. Choose the size (square) of its sprite when prompted.
+
+Doodads saved in-game go in your user config directory for the game. On Linux,
+this is at ~/.config/doodle.
+
+If you want to create a doodad with multiple frames (to animate it or have
+varying states that change the doodad's appearance in the level), the
+`doodad` tool is recommended. See
+[drawing images in an external program](edit-external.md).
+
+## Future Planned Features
+
+Creating doodads in-game is intended to be a fully supported feature. The
+following features are planned to be supported:
+
+* Support editing multiple frames instead of only the first frame.
+* Implement some features only available on the `doodad` tool using in-game
+ UI, such as attaching JavaScripts to the doodad.
diff --git a/dev-assets/guidebook/docs/custom-doodads/index.md b/dev-assets/guidebook/docs/custom-doodads/index.md
new file mode 100644
index 0000000..67fa6fc
--- /dev/null
+++ b/dev-assets/guidebook/docs/custom-doodads/index.md
@@ -0,0 +1,43 @@
+# Creating Custom Doodads
+
+Project: Doodle is designed to be modder friendly and provides tools to help
+you create your own custom doodads to use in your levels.
+
+You can draw the sprites for the doodad either in-game or using an external
+image editor. Then, you can program their logic using JavaScript to make them
+"do" stuff in-game and interact with the player and other doodads.
+
+* Drawing your Doodad's Sprites
+ * [In-Game](edit-in-game.md)
+ * [In an External Program](edit-external.md)
+* Program its Behavior
+ * [JavaScript](scripts.md)
+
+## doodad (Command Line Tool)
+
+Your copy of the game should have shipped with a `doodad` command-line tool
+bundled with it. On Windows it's called `doodad.exe` and should be in the same
+folder as the game executable. On Mac OS, it is inside the .app bundle.
+
+The `doodad` tool provides a command-line interface to create and inspect
+doodad and level files from the game. You'll need to use this tool, at the very
+least, to attach a JavaScript to your doodad to make it "do" stuff in-game.
+
+You can create a doodad from PNG images on disk, attach or view the JavaScript
+source on them, and view/edit metadata.
+
+```bash
+# (the $ represents the shell prompt in a command-line terminal)
+
+# See metadata about a doodad file.
+$ doodad show /path/to/custom.doodad
+
+# Create a new doodad based on PNG images on disk.
+$ doodad convert frame0.png frame1.png frame2.png output.doodad
+
+# Add and view a custom script attached to the doodad.
+$ doodad install-script index.js custom.doodad
+$ doodad show --script custom.doodad
+```
+
+More info on the [`doodad` tool](../doodad-tool.md) here.
diff --git a/dev-assets/guidebook/docs/custom-levels/index.md b/dev-assets/guidebook/docs/custom-levels/index.md
new file mode 100644
index 0000000..cd9369e
--- /dev/null
+++ b/dev-assets/guidebook/docs/custom-levels/index.md
@@ -0,0 +1,99 @@
+# Creating Custom Levels
+
+One of the core gameplay features is its Level Editor which lets you draw your
+own custom maps to play and share with others.
+
+From the game's Main Menu, click on the "Create a Level" button to open the
+level editor. To edit an existing custom level, click on the "Edit a Level"
+button instead.
+
+## Level Properties
+
+When creating a new level, you first choose some settings for it. These are
+described below:
+
+### Page Type
+
+This setting controls the size and boundaries of your level, and control the
+appearance of the notebook paper background of your level.
+
+* **Bounded** is the default. The camera won't scroll past the top-left corner
+ of the page (0,0), and the level size is capped to 2550x3300, or the
+ approximate size of an 11:9 standard sheet of notebook paper in pixels.
+* **No Negative Space** is like Bounded, but the width and height of the level
+ have no boundary. Levels can grow "infinitely" to the right and downward
+ but no negative coordinates past the top or left edge.
+* **Unbounded** allows for "infinite" sized maps that give unlimited room to
+ grow your level. The wallpaper on this level type only uses the "tiling"
+ pattern, so notebook-themed levels won't show the top/left decorations.
+
+### Wallpaper
+
+The wallpaper affects the "theme" of your level. Project: Doodle is themed around
+hand-drawn mazes on paper, so the built-in themes look like various kinds of
+paper.
+
+* **Notebook** looks like standard ruled notebook paper. It's a white paper with
+ blue horizontal lines, a single red vertical line down the left, and a wide
+ margin on the top and left edges.
+* **Legal Pad** looks like ruled yellow legal pad. It's similar to Notebook but
+ has yellow paper and a second vertical red line down the left.
+* **Blueprint** is a dark blueprint paper background with a repeating grid pattern.
+ Notably, the default Color Palette for this theme is different than normal:
+ "solid" lines are white instead of black, to show up better against the dark
+ background.
+
+The decorations of the wallpaper vary based on the Page Type. For example, the
+Notebook and Legal Pad have extra padding on the top of the page and red lines
+going down just the left side, and the rest of the level uses the repeating blue
+lines pattern. The page types and their effect on the wallpapers are:
+
+* **Bounded** and **No Negative Space** will show the decorations for the top
+ and left edges of the page, as these levels are bounded on their top/left
+ corner.
+* **Unbounded** levels only use the repeating tiled pattern across the entire
+ level, because there is no top-left boundary to anchor those decorations to.
+
+## Editor Mode Interface
+
+
+
+Quick 5-minute tour of what you're looking at:
+
+* The top of the window has your **Menu Bar**:
+ * **New Level** opens the "Create a New Level" menu.
+ * **New Doodad** opens the Doodad Editor for drawing a new custom doodad.
+ You're prompted for the size of the doodad, which will be its width and
+ height boundary. For example, a size of "100" means a 100x100 pixel graphic
+ for your custom doodad.
+ * **Save** and **Save as...** let you save the current Level or Doodad you're
+ drawing to disk. "Save" will only ask for the filename once whereas "Save as"
+ asks every time.
+ * **Load** opens the "Edit a Level" menu to choose a Level or Doodad to edit.
+ * **Options** options the Level Options dialog so you can modify the page type
+ and wallpaper setting.
+* The panel on the left side of the window is your **Tool Box**. Clicking these
+ buttons activates a specific drawing tool or mode:
+ * **Pencil Tool** lets you click, drag, and draw pixels of your selected
+ Palette color onto your level freehand.
+ * **Line Tool** lets you easily draw a straight line between two points. Click
+ in your level where you want the first point to be, and drag your mouse to
+ the second point. Release the mouse to commit the line to your drawing.
+ * **Rectangle Tool** lets you easily draw rectangles on your level.
+ * **Ellipse Tool** lets you draw circles or elliptical shapes.
+ * **Doodad Tool** lets you drag doodads such as buttons and doors onto your
+ level. See the [Doodad Tool](#doodad-tool) below.
+ * **Link Tool** lets you link doodads together so that they can interact off
+ each other. For example, a Button connected to an Electric Door will cause
+ the door to open and close when the button is pressed. See [Link Tool](#link-tool)
+ below.
+ * **Eraser Tool** cleans up your mistakes. Click and drag over pixels you've
+ drawn to delete the pixels from your level.
+ * **Brush Size:** the "Size:" label shows the brush size of your current drawing
+ tool. This translates to the line thickness, or how big your pixels are when
+ drawn into the level. Click the + and - buttons to increase or decrease the
+ brush size, and draw thicker or thinner lines.
+* The panel on the right side of the window is your **Palette** of colors to
+ draw with.
+
+
diff --git a/dev-assets/guidebook/docs/doodad-tool.md b/dev-assets/guidebook/docs/doodad-tool.md
new file mode 100644
index 0000000..02c3ef0
--- /dev/null
+++ b/dev-assets/guidebook/docs/doodad-tool.md
@@ -0,0 +1,118 @@
+# Doodad Tool
+
+The game ships with a command-line program called `doodad` which assists in
+creating and managing custom doodads and levels.
+
+The `doodad` tool can show and set details on .doodad and .level files used by
+the game, create new doodads from PNG images and attach custom JavaScript source
+to program behavior of doodads.
+
+## Where to Find It
+
+The `doodad` tool should be in the same place as the game executable.
+
+On Windows, the program is called `doodad.exe` and comes in the zip file next
+to the game executable, `doodle.exe`.
+
+On Linux, it will typically be at `/opt/project-doodle/doodad`.
+
+On Mac OS, it is found inside the .app bundle.
+
+## Usage
+
+Run `doodad --help` to get usage information.
+
+The program includes several sub-commands, such as `doodad convert`. Type a
+subcommand and `--help` to get help on that command, for example:
+
+```bash
+doodad convert --help
+```
+
+# Examples
+
+Here are some common scenarios and use cases for the doodad tool.
+
+## Show
+
+```bash
+# Usage:
+doodad show [doodad or level filename]
+```
+
+Shows metadata and details about a level or doodad file.
+
+Examples:
+
+```bash
+$ doodad show button.doodad
+===== Doodad: button.doodad =====
+Headers:
+ File version: 1
+ Game version: 0.0.10-alpha
+ Doodad title: Button
+ Author: Noah
+ Locked: true
+ Hidden: false
+ Script size: 473 bytes
+
+Palette:
+ - Swatch name: Color<#000000+ff>
+ Attributes: solid
+ Color: #000000
+ - Swatch name: Color<#666666+ff>
+ Attributes: none
+ Color: #666666
+ - Swatch name: Color<#999999+ff>
+ Attributes: fire
+ Color: #999999
+
+Layer 0: button1
+Chunks:
+ Pixels Per Chunk: 37^2
+ Number Generated: 1
+ Coordinate Range: (0,0) ... (36,36)
+ World Dimensions: 36x36
+ Use -chunks or -verbose to serialize Chunks
+
+Layer 1: button2
+Chunks:
+ Pixels Per Chunk: 37^2
+ Number Generated: 1
+ Coordinate Range: (0,0) ... (36,36)
+ World Dimensions: 36x36
+ Use -chunks or -verbose to serialize Chunks
+```
+
+## Convert
+
+```bash
+# Usage:
+doodad convert [options]