diff --git a/docs/api.md b/docs/api.md
new file mode 100644
index 0000000000000000000000000000000000000000..fe113c6a1500759d413611699ecd0b4002ec9902
--- /dev/null
+++ b/docs/api.md
@@ -0,0 +1,3 @@
+# API Reference
+
+::: acmc.module_name
\ No newline at end of file
diff --git a/docs/changelog.md b/docs/changelog.md
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/docs/contributing.md b/docs/contributing.md
new file mode 100644
index 0000000000000000000000000000000000000000..1c6ba5ecfdc8608ba2d51f0f346364c6afb4253c
--- /dev/null
+++ b/docs/contributing.md
@@ -0,0 +1,209 @@
+# Contributing - Development Guide
+
+## Prerequisites
+To install the ACMC package for development, ensure you have Python 3.9 or later installed.
+
+### Clone the Repository
+```sh
+git clone https://git.soton.ac.uk/meldb/concepts-processing.git
+cd concepts-processing
+```
+
+### Set Up a Virtual Environment
+It is recommended to use a virtual environment to manage dependencies.
+
+```sh
+python -m venv venv
+source venv/bin/activate  # On Windows use `venv\Scripts\activate`
+```
+
+### Install Dependencies
+Using `hatch`, you can install the necessary dependencies easily.
+
+```sh
+pip install --upgrade pip
+pip install hatch
+```
+This will create a virtual environment with all required dependencies.
+
+## Development Environment
+
+We have two separate environments to ensure that development dependencies (such as testing tools, linters, or other utilities) don't interfere the production environment. 
+
+- default environment: includes the core dependencies to run acmc (e.g., requests, etc.).
+- dev environment: includes additional tools for testing, code formatting, linting, and other development workflows (e.g., pytest, black, mypy, etc.).
+
+The development toos used include:
+
+- pytest: testing
+- mypy: type checking
+- black: code formatting
+
+### Activate the Development Environment
+To enter the (dev) development environment, use:
+
+```sh
+hatch shell dev
+```
+
+### Activate Production Environment
+To enter the (acmc) production environment, use:
+
+```sh
+hatch shell
+```
+
+### Deactivate Environment
+To exit an environment from hatch, use:
+
+```sh
+exit
+```
+
+### Running Tests
+To run tests using `pytest`, use:
+
+```sh
+hatch run pytest
+```
+
+### All code checks
+The project run all type and formatting checking
+
+```sh
+hatch run check
+```
+
+### Code Formatting
+The project uses `black` for code formatting. Ensure your code is properly formatted before committing
+
+To check if any of the code needs to be formatted, run black with the `--check` option
+
+```sh
+hatch run black --check .
+```
+
+To format the coode and modify the files, use
+
+```sh
+hatch run black .
+```
+
+### Type Checking
+The project uses `mypy` for type checking:
+
+```sh
+hatch run mypy .
+```
+
+## Building the Package
+To build the package, use:
+
+```sh
+hatch build
+```
+
+## Running the CLI
+The package provides a command-line interface (CLI) entry point. 
+
+```sh
+acmc --help
+```
+
+## Contributing
+
+### GitLab Basic Workflow Overview 
+
+1. Create an new issue in the [Issue Tracker](https://git.soton.ac.uk/meldb/concepts-processing/-/issues)
+
+2. Create a new branch for your feature 
+
+You can do this from the issue page in GitLab by selecting "Create Branch", then checkout using:
+
+   ```sh
+   git pull origin
+   git checkout -b feature-branch origin/feature-branch   
+   ```
+
+This works if someone has already created the branch and you want to work on it.
+
+You can also create a new branch in your local repo if it does not exist and it will be created when you push
+
+   ```sh
+   git checkout -b feature-branch
+   ```
+
+4. Make changes and commit them:
+   ```sh
+   git add .
+   git commit -m "Description of changes"
+   ```
+5. Push your branch:
+   ```sh
+   git push origin feature-branch
+   ```
+6. Open a merge request in GitLab.
+
+If you make changes, ensure all tests pass and code formatting is correct before submitting a merge request.
+
+## GitLab Workflow for Managing Releases
+
+### 1. Main Branch (`main`)
+- Represents the stable production-ready code.
+- Contains only release versions.
+- Direct commits are not allowed; changes must go through a pull request (PR) from `dev`.
+- Merges into `main` require authorization from a repository maintainer or admin.
+- Protected branch settings should enforce code reviews and approvals before merging.
+
+### 2. Development Branch (`dev`)
+- Used for integration and testing.
+- All feature branches must be merged here first before reaching `main`.
+- Regularly synced with `main` to keep it up to date.
+
+### 3. Feature Branches (`feature-xxx`)
+- Created for each issue or feature.
+- Always branch from `dev` based on an issue.
+- Named according to the issue number and short description (e.g., `feature-123-user-auth`).
+- Can be created directly from the issue page in GitLab by selecting "Create Branch".
+- Merged into `dev` through a pull request.
+
+## Pull Request Sequence
+
+1. **Create a Feature Branch**
+   - Branch from `dev`: `git checkout -b feature-xxx dev`
+   - Alternatively, create the branch from the issue itself in GitLab.
+   - Implement feature and commit changes following commit message guidelines.
+
+2. **Push the Branch**
+   - `git push origin feature-xxx`
+
+3. **Create a Merge Request (MR) to `dev`**
+   - Ensure code review and approvals before merging.
+   - Resolve conflicts if any.
+   
+4. **Merge to `dev`**
+   - Squash and merge when approved.
+   - Delete feature branch after successful merge.
+
+5. **Release to `main`**
+   - Create a merge request from `dev` to `main`.
+   - Perform final testing.
+   - Tag the release with versioning (e.g., `v1.0.0`).
+   - Deploy to production after approval.
+   - Requires authorization from a repository maintainer or admin before merging.
+
+### Commit Message Guidelines
+- Use clear and descriptive commit messages.
+- Format: `<type>(<scope>): <description>`
+- Example: `docs: git workflow documentation (#issue)`
+- Types: `feat`, `fix`, `docs`, `refactor`, `test`, `chore`.
+
+## Additional Guidelines
+- Always pull the latest changes before starting a new feature: `git pull origin dev`
+- Write unit tests for new features.
+- Keep feature branches short-lived and regularly updated with `dev`.
+
+## Additional Resources
+- [Repository](https://git.soton.ac.uk/meldb/concepts-processing)
+- [Documentation](https://git.soton.ac.uk/meldb/concepts-processing/docs)
+- [Issue Tracker](https://git.soton.ac.uk/meldb/concepts-processing/-/issues)
\ No newline at end of file
diff --git a/docs/installation.md b/docs/installation.md
new file mode 100644
index 0000000000000000000000000000000000000000..a501c3a69d4782f54cd1a0e87520524416f8bbfc
--- /dev/null
+++ b/docs/installation.md
@@ -0,0 +1 @@
+# ACMC Installation Guide
\ No newline at end of file
diff --git a/docs/mkdocs.yml b/docs/mkdocs.yml
new file mode 100644
index 0000000000000000000000000000000000000000..d39abac886728a3d771701ec7da4779f2c4b142a
--- /dev/null
+++ b/docs/mkdocs.yml
@@ -0,0 +1,28 @@
+site_name: ACMC Documentation
+theme:
+  name: material
+  features:
+    - navigation.tabs
+    - navigation.expand
+    - content.code.copy  
+nav:
+  - Home: index.md
+  - Installation: installation.md
+  - Usage: usage.md
+  - Contributing: contributing.md
+  - API Reference: api.md
+  - Tutorials:
+    - Example 1 - Basic local phenotype: ./tutorials/example1.md
+    - Example 2 - More complex local phenotype: ./tutorials/example2.md
+    - Example 3 - Using a remote git repository: ./tutorials/example3.md
+  - Contributing: contributing.md
+  - Change Log: changelog.md
+  - Troubleshooting: troubleshooting.md
+repo_url: https://git.soton.ac.uk/meldb/concepts-processing/
+plugins:
+  - search
+  - mkdocstrings:
+      handlers:
+        python:
+          options:
+            show_source: false
diff --git a/docs/troubleshooting.md b/docs/troubleshooting.md
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/docs/tutorials/example1.md b/docs/tutorials/example1.md
new file mode 100644
index 0000000000000000000000000000000000000000..562e2989c0714a59a0e50176cbdb905d1753e9a1
--- /dev/null
+++ b/docs/tutorials/example1.md
@@ -0,0 +1 @@
+# Example 1 Basic local phenotype
diff --git a/docs/tutorials/example2.md b/docs/tutorials/example2.md
new file mode 100644
index 0000000000000000000000000000000000000000..8c68b37e5b78098d5cddb0622728b5a223366315
--- /dev/null
+++ b/docs/tutorials/example2.md
@@ -0,0 +1 @@
+# Example 2 - More complex local phenotype
\ No newline at end of file
diff --git a/docs/tutorials/example3.md b/docs/tutorials/example3.md
new file mode 100644
index 0000000000000000000000000000000000000000..becc32fe5382e637ff8e682d9d89f1674326934b
--- /dev/null
+++ b/docs/tutorials/example3.md
@@ -0,0 +1 @@
+Example 3 - Using a remote git repository
\ No newline at end of file
diff --git a/docs/usage.md b/docs/usage.md
new file mode 100644
index 0000000000000000000000000000000000000000..1527165ea12c7f7d696f8ba70c011c35eb2e92a5
--- /dev/null
+++ b/docs/usage.md
@@ -0,0 +1,134 @@
+# ACMC Usage Guide
+
+The `acmc` command-line tool provides various commands to interact with TRUD, OMOP, and Phenotype data. Below are the usage details for each command.
+
+## General Syntax
+
+```bash
+acmc [OPTIONS] COMMAND [SUBCOMMAND] [ARGUMENTS]
+```
+
+Where:
+- `[OPTIONS]` are global options that apply to all commands (e.g., `--debug`, `--version`).
+- `[COMMAND]` is the top-level command (e.g., `trud`, `omop`, `phen`).
+- `[SUBCOMMAND]` refers to the specific operation within the command (e.g., `install`, `validate`).
+
+## Global Options
+
+- `--version`: Display the acmc tool version number
+- `--debug`: Enable debug mode for more verbose logging.
+
+## Commands
+
+### TRUD Command
+
+The `trud` command is used for installing NHS TRUD vocabularies.
+
+- **Install TRUD**
+
+  Install clinically assurred TRUD medical code mappings:
+
+  ```bash
+  acmc trud install
+  ```
+
+### OMOP Command
+
+The `omop` command is used for installing OMOP vocabularies.
+
+- **Install OMOP**
+
+  Install vocabularies in a local OMOP database:
+
+  ```bash
+  acmc omop install -d <OMOP_DIRECTORY_PATH> -v <OMOP_VERSION>
+  ```
+
+  - `-d`, `--omop-dir`: (Optional) Directory path to extracted OMOP downloads, default is `./build/omop`
+  - `-v`, `--version`: OMOP vocabularies release version.
+
+- **Clear OMOP**
+
+  Clear data from the local OMOP database:
+
+  ```bash
+  acmc omop clear
+  ```
+
+- **Delete OMOP**
+
+  Delete the local OMOP database:
+
+  ```bash
+  acmc omop delete
+  ```
+
+### PHEN Command
+
+The `phen` command is used phenotype-related operations.
+
+- **Initialize Phenotype**
+
+  Initialize a phenotype directory locally or from a remote git repository:
+
+  ```bash
+  acmc phen init -d <PHENOTYPE_DIRECTORY> -r <REMOTE_URL>
+  ```
+
+  - `-d`, `--phen-dir`: (Optional) Directory to write phenotype configuration (the default is ./build/phen).
+  - `-r`, `--remote_url`: (Optional) URL to a remote git repository.
+
+- **Validate Phenotype**
+
+  Validate the phenotype configuration:
+
+  ```bash
+  acmc phen validate -d <PHENOTYPE_DIRECTORY>
+  ```
+
+  - `-d`, `--phen-dir`: (Optional) Directory of phenotype configuration (the default is ./build/phen).
+
+- **Map Phenotype**
+
+  Process phenotype mapping and specify the target coding and output format:
+
+  ```bash
+  acmc phen map -d <PHENOTYPE_DIRECTORY> -t <TARGET_CODING> -o <OUTPUT_FORMAT>
+  ```
+
+  - `-t`, `--target-coding`: Specify the target coding (e.g., `read2`, `read3`, `icd10`, `snomed`, `opcs4`).
+  - `-d`, `--phen-dir`: (Optional) Directory of phenotype configuration (the default is ./build/phen).
+  - `-o`, `--output`: Output format(s) (`csv`, `omop`, or both), default is 'csv'.
+
+- **Publish Phenotype Configuration**
+
+  Publish a phenotype configuration, committing all changes and tagging with a new version number. If the phenotype has been initialised from a remote git URL, then the commit and new version tag will be pushed to the remote repo:
+
+  ```bash
+  acmc phen publish -d <PHENOTYPE_DIRECTORY>
+  ```
+
+  - `-d`, `--phen-dir`: (Optional) Directory of phenotype configuration (the default is ./build/phen).
+
+- **Copy Phenotype Configuration**
+
+  Copy a phenotype configuration from a source directory to a target directory at a specific version. This is used when wanting to compare versions of phenotypes using the `acmc phen diff` command: 
+
+  ```bash
+  acmc phen copy -d <PHENOTYPE_DIRECTORY> -td <TARGET_DIRECTORY> -v <PHENOTYPE_VERSION>
+  ```
+
+  - `-d`, `--phen-dir`: (Optional) Directory of phenotype configuration (the default is ./build/phen).
+  - `-td`, `--target-dir`: (Optional) Directory to copy the phenotype configuration to, (the default is ./build).
+  - `-v`, `--version`: The phenotype version to copy.
+
+- **Compare Phenotype Configurations**
+
+  Compare a a new phenotype version with pervious version of a phenotype:
+
+  ```bash
+  acmc phen diff -d <NEW_PHENOTYPE_DIRECTORY> -old <OLD_PHENOTYPE_DIRECTORY>
+  ```
+
+  - `-d`, `--phen-dir`: (Optional) Directory of current phenotype configuration (the default is ./build/phen).
+  - `-old`, `--phen-dir-old`: (Required) Directory of old phenotype version)
\ No newline at end of file
diff --git a/mkdocs.yml b/mkdocs.yml
new file mode 100644
index 0000000000000000000000000000000000000000..d3b89a064436f44c90ebdb4489f065b39dfa0210
--- /dev/null
+++ b/mkdocs.yml
@@ -0,0 +1,21 @@
+site_name: ACMC Documentation
+theme:
+  name: material
+  features:
+    - navigation.tabs
+    - navigation.expand
+    - content.code.copy  
+nav:
+  - Home: index.md
+  - Installation: installation.md
+  - Usage: usage.md
+  - Contributing: contributing.md
+  - API Reference: api.md
+  - Tutorials:
+    - Example 1 - Basic local phenotype: ./tutorials/example1.md
+    - Example 2 - More complex local phenotype: ./tutorials/example2.md
+    - Example 3 - Using a remote git repository: ./tutorials/example3.md
+  - Contributing: contributing.md
+  - Change Log: changelog.md
+  - Troubleshooting: troubleshooting.md
+repo_url: https://git.soton.ac.uk/meldb/concepts-processing/
diff --git a/pyproject.toml b/pyproject.toml
index 04e94938abd58743b2cbb1c7a1c8e5616a9f937d..bab2a0b375db437f9b4dfc771c71f447121bd156 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -73,9 +73,6 @@ dependencies = [
 
 [tool.hatch.envs.dev.scripts]
 check = "black . && mypy ."
-docs = "sphinx-build -b html docs/source docs/build"
-mkdocs = "mkdocs build"
-pdoc = "pdoc --html acmc -o docs --force"
 
 [tool.hatch.build]
 include = ["acmc/**"]  # Ensure only the acmc package is included