diff --git a/src/main.rs b/src/main.rs
index e867e24..3a41e13 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,6 +4,7 @@ use rnote::{app, process};
 
 mod rnote;
 
+/// Check if variable `EDITOR` is set.
 fn check() -> Result<()> {
     let editor = std::env::var("EDITOR").unwrap_or("".to_owned());
     if editor.is_empty() {
diff --git a/src/rnote/app.rs b/src/rnote/app.rs
index 7292229..183f664 100644
--- a/src/rnote/app.rs
+++ b/src/rnote/app.rs
@@ -1,5 +1,6 @@
 pub use clap::{App, AppSettings, Arg, SubCommand};
 
+/// Initialize all possible arguments.
 pub fn make_app() -> App<'static, 'static> {
     App::new("rnote")
         .version("0.0.1")
diff --git a/src/rnote/notes.rs b/src/rnote/notes.rs
index 1e3d838..448bd4a 100644
--- a/src/rnote/notes.rs
+++ b/src/rnote/notes.rs
@@ -58,7 +58,7 @@ pub fn create(header: &str, category: &str) -> Result<()> {
     Ok(())
 }
 
-/// Checks if potentially new note name already exists.
+/// Check if potentially new note name already exists.
 fn is_duplicate(header: &str, category: &str) -> Result<()> {
     let file = format!("{}{}.md", get_path(category)?, header);
     let path = format!("{}", get_path(category)?);
@@ -77,7 +77,7 @@ fn is_duplicate(header: &str, category: &str) -> Result<()> {
     Ok(())
 }
 
-/// Finds a path to desired note.
+/// Find a path to desired note.
 pub fn find_path(header: &str) -> Result<Option<String>> {
     let mut paths: Vec<String> = Vec::new();
     let base = get_base_path()?;
@@ -115,7 +115,7 @@ pub fn find_path(header: &str) -> Result<Option<String>> {
     }
 }
 
-/// Deletes a note.
+/// Delete a note.
 pub fn remove(header: &str) -> Result<()> {
     let path = find_path(header)?;
     if Confirm::with_theme(&ColorfulTheme::default())
@@ -150,6 +150,7 @@ pub fn modify(header: &str) -> Result<()> {
     }
 }
 
+/// Search all notes that contain a given string.
 pub fn search_by_word(word: &str) -> Result<()> {
     extern crate fstream;
     let path = get_base_path()?;
@@ -188,6 +189,7 @@ pub fn search_by_word(word: &str) -> Result<()> {
     Ok(())
 }
 
+/// Show all notes.
 pub fn show_all() -> Result<()> {
     let path = get_base_path()?;
     let mut files: Vec<String> = Vec::new();
@@ -206,6 +208,7 @@ pub fn show_all() -> Result<()> {
     Ok(())
 }
 
+/// Show one note.
 pub fn show(header: &str) -> Result<()> {
     let path = find_path(header)?;
     match path {
@@ -219,6 +222,7 @@ pub fn show(header: &str) -> Result<()> {
     }
 }
 
+/// Show all notes in the given category.
 pub fn show_category(category: &str) -> Result<()> {
     let base = get_base_path()?;
     let path = format!("{}{}", base, category);
@@ -240,6 +244,7 @@ pub fn show_category(category: &str) -> Result<()> {
     Ok(())
 }
 
+/// List all notes and optionally open one.
 pub fn list_all() -> Result<()> {
     let path = get_base_path()?;
     let mut files: Vec<String> = Vec::new();
@@ -269,6 +274,7 @@ pub fn list_all() -> Result<()> {
     Ok(())
 }
 
+/// List all notes in the given category and optionally open one.
 pub fn list_category(category: &str) -> Result<()> {
     let base = get_base_path()?;
     let path = format!("{}{}", base, category);
@@ -301,6 +307,7 @@ pub fn list_category(category: &str) -> Result<()> {
     Ok(())
 }
 
+/// Remove all notes created at the given date in format `YYYY-MM-dd`.
 pub fn wipe_date(date: &str) -> Result<()> {
     let base = get_base_path()?;
     for (_, file) in WalkDir::new(base)
@@ -320,6 +327,7 @@ pub fn wipe_date(date: &str) -> Result<()> {
     Ok(())
 }
 
+/// Remove empty directories.
 fn remove_empty_dirs() -> Result<()> {
     let base = get_base_path()?;
     for (_, file) in WalkDir::new(base)
diff --git a/src/rnote/process.rs b/src/rnote/process.rs
index 74c3ff4..05b83e1 100644
--- a/src/rnote/process.rs
+++ b/src/rnote/process.rs
@@ -3,6 +3,7 @@ use anyhow::{anyhow, Result};
 use clap::ArgMatches;
 use dialoguer::{theme::ColorfulTheme, Input};
 
+/// Process argument `new`.
 pub fn new(matches: &ArgMatches) -> Result<()> {
     let header = match matches.value_of("header") {
         Some(s) => s.to_owned(),
@@ -16,6 +17,7 @@ pub fn new(matches: &ArgMatches) -> Result<()> {
     Ok(())
 }
 
+/// Process argument `remove`.
 pub fn remove(matches: &ArgMatches) -> Result<()> {
     match matches.value_of("header") {
         Some(s) => notes::remove(s)?,
@@ -38,6 +40,7 @@ pub fn remove(matches: &ArgMatches) -> Result<()> {
     Ok(())
 }
 
+/// Process argument `remove`.
 pub fn edit(matches: &ArgMatches) -> Result<()> {
     let header = match matches.value_of("header") {
         Some(s) => s.to_owned(),
@@ -50,6 +53,7 @@ pub fn edit(matches: &ArgMatches) -> Result<()> {
     Ok(())
 }
 
+/// Process argument `list`.
 pub fn list(matches: &ArgMatches) -> Result<()> {
     match matches.is_present("category") {
         true => {
@@ -63,6 +67,7 @@ pub fn list(matches: &ArgMatches) -> Result<()> {
     Ok(())
 }
 
+/// Process argument `search`.
 pub fn search(matches: &ArgMatches) -> Result<()> {
     match matches.value_of("header") {
         Some(s) => {
@@ -88,6 +93,7 @@ pub fn search(matches: &ArgMatches) -> Result<()> {
     Ok(())
 }
 
+/// Process argument `show`.
 pub fn show(matches: &ArgMatches) -> Result<()> {
     match matches.value_of("header") {
         Some(s) => notes::show(s)?,
@@ -107,6 +113,7 @@ pub fn show(matches: &ArgMatches) -> Result<()> {
     Ok(())
 }
 
+/// Process argument `panic`.
 pub fn panic() -> Result<()> {
     let base = notes::get_base_path()?;
     std::fs::remove_dir_all(base)?;
diff --git a/src/rnote/show.rs b/src/rnote/show.rs
index 40e991c..588afa8 100644
--- a/src/rnote/show.rs
+++ b/src/rnote/show.rs
@@ -8,12 +8,14 @@ use crossterm::{
 use std::io::{stderr, Write};
 use termimad::*;
 
+/// Set view area.
 pub fn view_area() -> Area {
     let mut area = Area::full_screen();
     area.pad_for_max_width(120); // we don't want a too wide text column
     area
 }
 
+/// Display the given markdown string `md` in a Scrollable TextView in a raw terminal.
 pub fn run_app(skin: MadSkin, md: &str) -> Result<()> {
     let mut w = stderr(); // we could also have used stdout
     queue!(w, EnterAlternateScreen)?;
@@ -45,6 +47,7 @@ pub fn run_app(skin: MadSkin, md: &str) -> Result<()> {
     Ok(())
 }
 
+/// Set MadSkin.
 pub fn make_skin() -> MadSkin {
     let mut skin = MadSkin::default();
     skin.table.align = Alignment::Center;