diff --git a/slides/07-managing_growing_projects_with_packages_crates_and_modules.qmd b/slides/07-managing_growing_projects_with_packages_crates_and_modules.qmd
index 8bec82b..0ea69a7 100644
--- a/slides/07-managing_growing_projects_with_packages_crates_and_modules.qmd
+++ b/slides/07-managing_growing_projects_with_packages_crates_and_modules.qmd
@@ -6,26 +6,117 @@ title: "7. Managing Growing Projects with Packages, Crates, and Modules"
 # Learning objectives
 
 ::: nonincremental
-- THESE ARE NICE TO HAVE BUT NOT ABSOLUTELY NECESSARY
+- Differentiate between packages, crates, and modules.
+- Understand and use Rust's module system (`mod`, `pub`, `use`).
+- Implement Cargo workspaces for multi-crate projects.
+- Apply best practices for managing and organizing Rust projects.
 :::
 
 ::: notes
-- You can add notes on each slide with blocks like this!
-- Load a deck in the browser and type "s" to see these notes.
+Encourage questions about any points that feel unclear.
 :::
 
-# SLIDE SECTION
+# Overview of Packages, Crates, and Modules
 
-## SLIDE
+## Key Concepts
 
-- DENOTE MAJOR SECTIONS WITH `# TITLE` (eg `# Installation`)
-- ADD INDIVIDUAL SLIDES WITH `##` (eg `## rustup on Linux/macOS`)
-- KEEP THEM RELATIVELY SLIDE-LIKE; THESE ARE NOTES, NOT THE BOOK ITSELF.
+- **Package**: A Cargo feature that lets you build, test and share crates. Defined by a `Cargo.toml` file.
+- **Crate**: A tree of modules that produces a library or executable. Rust's compilation unit.
+  - **Binary crate**: An executable with a `main` function as an entry point.
+  - **Library crate**: A crate that can be used by other crates.
+- **Module**: A way to organize code and control scope and visibility.
+- **Paths**: A way of naming an item, such as a struct, function, or module.
 
-## SLIDE
+# Creating and Using Packages
 
-# SLIDE SECTION
+## Setting Up a Package
 
-## SLIDE
+```console
+$ cargo new my_project
+$ cd my_project
+```
 
-## SLIDE
+- Creates a new package with a `Cargo.toml` and a default binary crate.
+- Binary crate root: `src/main.rs`.
+- To create a library crate, add a `src/lib.rs`.
+- An executable crate must have a `main` function as an entry point.
+- A library crate can be used by other crates, and does not need a `main` entry point.
+
+# Working with Modules
+## Control Scope and Privacy with Modules
+- Check out the backyard example!
+
+## Accessing Module Items
+``` rust
+crate::front_of_house::hosting::add_to_waitlist();
+```
+- Use absolute paths starting with crate
+
+``` rust
+front_of_house::hosting::add_to_waitlist();
+```
+- or, use relative paths starting with the module name
+
+## Controlling Visibility
+``` rust
+mod front_of_house {
+    pub mod hosting {
+        pub fn add_to_waitlist() {}
+    }
+}
+
+pub fn eat_at_restaurant() {
+    // Absolute path
+    crate::front_of_house::hosting::add_to_waitlist();
+
+    // Relative path
+    front_of_house::hosting::add_to_waitlist();
+}
+```
+- By default, items are private
+- Use `pub` to make modules, functions, and fields accessible
+
+## No private code in R
+- In R, everything is public 
+  - Even un-exported functions can be accessed with `:::`.
+- In Rust, private items are not accessible outside their module.
+
+# Using `use` for Convenience
+## Simplify Paths
+``` rust
+use crate::front_of_house::hosting;
+
+hosting::add_to_waitlist();
+```
+- Use `use` to shorten paths.
+- Works within the scope it's defined.
+
+## Re-exporting with `pub use`
+``` rust
+pub use crate::front_of_house::hosting;
+
+hosting::add_to_waitlist();
+```
+- Makes items available for external users.
+
+# Organizing Modules Across Files
+## Splitting Modules
+- Define a module in `src/lib.rs`:
+``` rust
+mod front_of_house;
+```
+- Create `src/front_of_house.rs`:
+``` rust
+pub mod hosting {
+    pub fn add_to_waitlist() {}
+}
+```
+
+- Nest submodules in `src/front_of_house/hosting.rs`.
+
+# Summary
+- Rust's module system (`mod`, `pub`, `use`) is powerful for organizing code.
+- Packages bundle functionality, crates define scope, and modules control visibility.
+- Cargo workspaces help manage complex projects with multiple packages.
+
+Next steps: Practice by creating a workspace with two crates and exploring the module system further!
diff --git a/slides/14-more_about_cargo_and_cratesio.qmd b/slides/14-more_about_cargo_and_cratesio.qmd
index 68dc393..03d3b83 100644
--- a/slides/14-more_about_cargo_and_cratesio.qmd
+++ b/slides/14-more_about_cargo_and_cratesio.qmd
@@ -3,29 +3,140 @@ engine: knitr
 title: "14. More about Cargo and Crates.io"
 ---
 
-# Learning objectives
+# Learning Objectives
 
 ::: nonincremental
-- THESE ARE NICE TO HAVE BUT NOT ABSOLUTELY NECESSARY
+- Learn more about Cargo's advanced features:
+  - Customizing builds with release profiles.
+  - Publishing libraries to [crates.io](https://crates.io/).
+  - Managing multi-crate projects with workspaces.
+  - Installing binaries using Cargo.
+  - Extending Cargo with custom commands.
 :::
 
-::: notes
-- You can add notes on each slide with blocks like this!
-- Load a deck in the browser and type "s" to see these notes.
-:::
+# Customizing Builds with Release Profiles
+
+## Release Profiles
+- **Profiles**: Predefined configurations for building code.
+  - `dev`: For development (`cargo build`).
+  - `release`: For production (`cargo build --release`).
+
+### Configuration in `Cargo.toml`
+```toml
+[profile.dev]
+opt-level = 0
+
+[profile.release]
+opt-level = 3
+```
+- `opt-level`: Optimization levels (0-3).
+  - *Development*: Minimize build time.
+  - *Production*: Maximize runtime performance.
+
+# Publishing a Crate to Crates.io
+## Steps to Publish
+1. Create an Account: Sign up at [crates.io](https://crates.io/).
+2. Retrieve API Token: Use `cargo login` to store it locally.
+3. Add Metadata in `Cargo.toml`:
+``` toml
+[package]
+name = "my_crate"
+description = "A brief description"
+license = "MIT OR Apache-2.0"
+```
+4. Run Publish: `cargo publish`.
+
+## Important Notes
+- Published versions are *permanent*.
+- You can "yank" a version to prevent new dependencies but retain existing ones.
+
+# Writing Documentation for Crates
+## Documentation Comments
+- Use `///` for documentation comments.
+- Supports Markdown formatting.
+
+## Example
+``` rust
+/// Adds one to the input number.
+///
+/// # Examples
+///
+/// ```
+/// let result = my_crate::add_one(1);
+/// assert_eq!(result, 2);
+/// ```
+pub fn add_one(x: i32) -> i32 {
+    x + 1
+}
+```
+
+- Run `cargo doc --open` to generate HTML documentation
+- Bonus: Examples in comments are tested with `cargo test`
+
+# Organizing Large Projects with Workspaces
+## What is a Workspace?
+- A workspace groups multiple crates.
+- Shared:
+  - `Cargo.lock` (dependency versions).
+  - `target` directory (build artifacts).
+
+## Workspace Configuration
+``` toml
+[workspace]
+members = ["crate1", "crate2"]
+```
+Benefits:
+- Simplifies management of interdependent crates.
+- Avoids redundant compilation of dependencies.
 
-# SLIDE SECTION
+# Using Workspaces
+## Examples Structure
+``` scss
+my_project/
+├── Cargo.toml (workspace root)
+├── crate1/
+│   ├── Cargo.toml
+│   └── src/
+├── crate2/
+│   ├── Cargo.toml
+│   └── src/
+└── target/
+```
 
-## SLIDE
+## Building and Testing
+- Build entire workspace: `cargo build`.
+- Test specific crate: `cargo test -p crate1`.
 
-- DENOTE MAJOR SECTIONS WITH `# TITLE` (eg `# Installation`)
-- ADD INDIVIDUAL SLIDES WITH `##` (eg `## rustup on Linux/macOS`)
-- KEEP THEM RELATIVELY SLIDE-LIKE; THESE ARE NOTES, NOT THE BOOK ITSELF.
+# Installing Binaries with Cargo
+## Installing Binary Crates
+- Use `cargo install`:
+``` sh
+cargo install ripgrep
+```
+- Binaries stored in `~/.cargo/bin` (add to `$PATH`).
 
-## SLIDE
+- Run the tool:
+``` sh
+rg --help
+```
 
-# SLIDE SECTION
+# Extending Cargo with Custom Commands
+## Custom Commands
+- Name binaries as `cargo-<command>`.
+- Accessible via `cargo <command>`.
 
-## SLIDE
+## Example:
+- A binary named `cargo-fancy`:
+``` sh
+cargo fancy
+```
+Benefits:
+- Extend Cargo without modifying it.
+- Automatically integrates into `cargo --list`.
 
-## SLIDE
+# Summary
+- Optimize builds using dev and release profiles.
+- Publish crates to crates.io (with clear documentation!).
+- Manage multi-crate projects with shared dependencies.
+- Install and use binaries with cargo install.
+- Create custom Cargo commands for specialized workflows.