diff --git a/chapters/lua.md b/chapters/lua.md
index 1cdd1bd..9485d3f 100644
--- a/chapters/lua.md
+++ b/chapters/lua.md
@@ -9,26 +9,15 @@ root: ../
 In this chapter we will talk about scripting in Lua, the tools required,
 and go over some techniques which you will probably find useful.
 
-* Programming
 * Tools
+	* Recommended Editors
 	* Integrated Programming Environments
+* Coding in Lua
+	* Selection
+* Programming
 * Local and Global
 * Including other Lua Scripts
 
-## Programming
-
-Teaching you how to program is beyond the scope of this book.
-
-### Codecademy
-[Codecademy](http://www.codecademy.com/) is one of the best resources for learning to 'code',
-it provides an interactive tutorial experience.
-
-### Scratch
-[Scratch](https://scratch.mit.edu) is a good resource when starting from absolute basics,
-learning the problem solving techniques required to program.\\
-Programming is all about breaking down problems into steps a computer can manage.\\
-Scratch is **designed to teach children** how to program, it isn't a serious programming language.
-
 ## Tools
 
 A text editor with code highlighting is sufficient for writing scripts in Lua.
@@ -77,6 +66,141 @@ One such IDE is Eclipse with the Koneki Lua plugin:
 * Start Minetest.
 * Enter the game to startup Lua.
 
+## Coding in Lua
+
+<div class="notice">
+	This section is a Work in Progress. May be unclear.
+</div>
+
+Programs are a series of commands that run one after another.
+We call these commands "statements."
+
+Program flow is important, it allows you to direct or skip over
+statements. There are three main types of flow:
+
+* Sequence: Just run one statement after another, no skipping.
+* Selected: Skip over statements depending on conditions.
+* Iteration: Repeating, looping. Keep running the same
+  statements until a condition is met.
+
+So, what do statements in Lua look like?
+
+{% highlight lua %}
+local a = 2     -- Set 'a' to 2
+local b = 2     -- Set 'b' to 2
+local result = a + b -- Set 'result' to a + b, which is 4
+a = a + 10
+print("Sum is "..result)
+{% endhighlight %}
+
+Woah, what happened there? a, b and result are **variables**. They're like what
+you get in mathematics, A = w * h. The equals signs are **assignments**, so
+"result" is set to a + b. Variable names can be longer than one character
+unlike in maths, as seen with the "result" variable. Lua is **case sensitive**.
+A is a different variable to a.
+
+The word "local" before they are first used means that they have local scope,
+I'll discuss that shortly.
+
+### Variable Types
+
+| Type     | Description                                        | Example                                   |
+|----------|----------------------------------------------------|-------------------------------------------|
+| Integer  | Whole number                                       | local A = 4                               |
+| Float    | Decimal                                            | local B = 3.2, local C = 5 / 2            |
+| String   | A piece of text                                    | local D = "one two three"                 |
+| Boolean  | True or False                                      | local is_true = false, local E = (1 == 1) |
+| Table    | Lists                                              | Explained below                           |
+| Function | Can run. May require inputs and may return a value | local result = func(1, 2, 3)              |
+
+Not an exhaustive list. Doesn't contain every possible type.
+
+### Arithmetic Operators
+
+| Symbol | Purpose        | Example                   |
+|--------|----------------|---------------------------|
+| A + B  | Addition       | 2 + 2 = 4                 |
+| A - B  | Subtraction    | 2 - 10 = -8               |
+| A * B  | Multiplication | 2 * 2 = 4                 |
+| A / B  | Division       | 100 / 50 = 2              |
+| A ^ B  | Powers         | 2 ^ 2 = 2<sup>2</sup> = 4 |
+| A .. B | Join strings   | "foo" .. "bar" = "foobar" |
+
+A string in programming terms is a piece of text.
+
+Not an exhaustive list. Doesn't contain every possible operator.
+
+### Selection
+
+The most basic selection is the if statement. It looks like this:
+
+{% highlight lua %}
+local random_number = math.random(1, 100) -- Between 1 and 100.
+
+if random_number > 50 then
+	print("Woohoo!")
+else
+	print("No!")
+end
+{% endhighlight %}
+
+That example generates a random number between 1 and 100. It then prints
+"Woohoo!" if that number is bigger than 50, overwise it prints "No!".
+What else can you get apart from '>'?
+
+### Logical Operators
+
+| Symbol  | Purpose                              | Example                                                     |
+|---------|--------------------------------------|-------------------------------------------------------------|
+| A == B  | Equals                               | 1 == 1 (true), 1 == 2 (false)                               |
+| A ~= B  | Doesn't equal                        | 1 ~= 1 (false), 1 ~= 2 (true)                               |
+| A > B   | Greater than                         | 5 > 2 (true), 1 > 2 (false), 1 > 1 (false)                  |
+| A < B   | Less than                            | 1 < 3 (true), 3 < 1 (false), 1 < 1 (false)                  |
+| A >= B  | Greater than or equals               | 5 >= 5 (true), 5 >= 3 (true), 5 >= 6 (false)                |
+| A <= B  | Less than or equals                  | 3 <= 6 (true), 3 <= 3 (true)                                |
+| A and B | And (both must be correct)           | (2 > 1) and (1 == 1)  (true), (2 > 3) and (1 == 1)  (false) |
+| A or B  | either or. One or both must be true. | (2 > 1) or (1 == 2) (true), (2 > 4) or (1 == 3) (false)     |
+| not A   | not true                             | not (1 == 2)  (true), not (1 == 1)  (false)                 |
+
+That doesn't contain every possible operator, and you can combine operators like this:
+
+{% highlight lua %}
+if not A and B then
+	print("Yay!")
+end
+{% endhighlight %}
+
+Which prints "Yay!" if A is false and B is true.
+
+Logical and arithmetic operators work exactly the same, they both accept inputs
+and return a value which can be stored.
+
+{% highlight lua %}
+local A = 5
+local is_equal = (A == 5)
+
+if is_equal then
+	print("Is equal!")
+end
+{% endhighlight %}
+
+## Programming
+
+Programming is the action of talking a problem, such as sorting a list
+of items, and then turning it into steps that a computer can understand.
+
+Teaching you the logical process of programming is beyond the scope of this book,
+however the following websites are quite useful in developing this:
+
+### Codecademy
+[Codecademy](http://www.codecademy.com/) is one of the best resources for learning to 'code',
+it provides an interactive tutorial experience.
+
+### Scratch
+[Scratch](https://scratch.mit.edu) is a good resource when starting from absolute basics,
+learning the problem solving techniques required to program.\\
+Scratch is **designed to teach children** how to program, it isn't a serious programming language.
+
 ## Local and Global
 
 Whether a variable is local or global determines where it can be written to or read to.