diff --git a/egui/src/app.rs b/egui/src/app.rs
index 2877fe48d..ae95a576d 100644
--- a/egui/src/app.rs
+++ b/egui/src/app.rs
@@ -1,5 +1,7 @@
 //! Traits and helper for writing Egui apps.
 //!
+//! This module is very experimental, and you don't need to use it.
+//!
 //! Egui can be used as a library, but you can also use it as a framework to write apps in.
 //! This module defined the `App` trait that can be implemented and used with the `egui_web` and `egui_glium` crates.
 
@@ -19,7 +21,7 @@ pub trait App {
 /// How the backend runs the app
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum RunMode {
-    /// Repint the UI all the time (at the display refresh rate of e.g. 60 Hz).
+    /// Repaint the UI all the time (at the display refresh rate of e.g. 60 Hz).
     /// This is good for games where things are constantly moving.
     /// This can also be achieved with `RunMode::Reactive` combined with calling `egui::Context::request_repaint()` each frame.
     Continuous,
@@ -50,7 +52,7 @@ pub trait Backend {
     fn fps(&self) -> f32;
 
     /// Signal the backend that we'd like to exit the app now.
-    /// This does nothing for web apps.s
+    /// This does nothing for web apps.
     fn quit(&mut self) {}
 }
 
diff --git a/egui/src/containers/scroll_area.rs b/egui/src/containers/scroll_area.rs
index be783cbb6..c041d2318 100644
--- a/egui/src/containers/scroll_area.rs
+++ b/egui/src/containers/scroll_area.rs
@@ -191,7 +191,7 @@ impl Prepared {
         let max_scroll_bar_width = max_scroll_bar_width_with_margin(ui);
 
         if show_scroll_this_frame && current_scroll_bar_width <= 0.0 {
-            // Avoid frame delay; start shwoing scroll bar right away:
+            // Avoid frame delay; start showing scroll bar right away:
             current_scroll_bar_width = remap_clamp(
                 ui.input().predicted_dt,
                 0.0..=ui.style().animation_time,
diff --git a/egui/src/input.rs b/egui/src/input.rs
index 8b09da7d4..69e321d50 100644
--- a/egui/src/input.rs
+++ b/egui/src/input.rs
@@ -1,3 +1,5 @@
+//! The input needed by Egui.
+
 use crate::math::*;
 
 /// If mouse moves more than this, it is no longer a click (but maybe a drag)
@@ -5,9 +7,9 @@ const MAX_CLICK_DIST: f32 = 6.0;
 /// The new mouse press must come within this many seconds from previous mouse release
 const MAX_CLICK_DELAY: f64 = 0.3;
 
-/// What the integration gives to the gui.
-/// All coordinates in egui is in point/logical coordinates
-/// with origin (0, 0) in the top left corner.
+/// What the backend provides to Egui at the start of each frame.
+///
+/// All coordinates are in points (logical pixels) with origin (0, 0) in the top left corner.
 #[derive(Clone, Debug, Default)]
 pub struct RawInput {
     /// Is the button currently down?
@@ -24,6 +26,7 @@ pub struct RawInput {
     pub screen_size: Vec2,
 
     /// Also known as device pixel ratio, > 1 for HDPI screens.
+    /// If text looks blurry on high resolution screens, you probably forgot to set this.
     pub pixels_per_point: Option<f32>,
 
     /// Time in seconds. Relative to whatever. Used for animations.
@@ -332,7 +335,7 @@ impl RawInput {
     pub fn ui(&self, ui: &mut crate::Ui) {
         use crate::label;
         // TODO: simpler way to show values, e.g. `ui.value("Mouse Pos:", self.mouse_pos);
-        // TODO: easily change default font!
+        // TODO: `ui.style_mut().text_style = TextStyle::Monospace`;
         ui.add(label!("mouse_down: {}", self.mouse_down));
         ui.add(label!("mouse_pos: {:.1?}", self.mouse_pos));
         ui.add(label!("scroll_delta: {:?} points", self.scroll_delta));
@@ -366,7 +369,7 @@ impl InputState {
         ui.add(label!("scroll_delta: {:?} points", self.scroll_delta));
         ui.add(label!("screen_size: {:?} points", self.screen_size));
         ui.add(label!(
-            "{} points for each physical pixel (hdpi factor)",
+            "{} points for each physical pixel (HDPI factor)",
             self.pixels_per_point
         ));
         ui.add(label!("time: {:.3} s", self.time));
diff --git a/egui/src/layers.rs b/egui/src/layers.rs
index 5d6be6d15..07339bf55 100644
--- a/egui/src/layers.rs
+++ b/egui/src/layers.rs
@@ -67,7 +67,7 @@ impl PaintList {
     }
 }
 
-// TODO: improve this
+// TODO: improve GraphicLayers
 #[derive(Clone, Default)]
 pub struct GraphicLayers(AHashMap<Layer, PaintList>);
 
diff --git a/egui/src/layout.rs b/egui/src/layout.rs
index 7f240d736..beb8582fe 100644
--- a/egui/src/layout.rs
+++ b/egui/src/layout.rs
@@ -61,12 +61,13 @@ pub(crate) fn anchor_rect(rect: Rect, anchor: (Align, Align)) -> Rect {
 #[derive(Clone, Copy, Debug, PartialEq)]
 // #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
 pub struct Layout {
-    /// Lay out things horizontally or vertically?
+    /// Lay out things horizontally or vertically? Main axis.
     dir: Direction,
 
+    /// How to align things on the cross axis.
     /// For vertical layouts: put things to left, center or right?
     /// For horizontal layouts: put things to top, center or bottom?
-    /// None means justified, which means full width (vertical layout) or height (horizontal layouts).
+    /// `None` means justified, which means full width (vertical layout) or height (horizontal layouts).
     align: Option<Align>,
 
     /// Lay out things in reversed order, i.e. from the right or bottom-up.
diff --git a/egui/src/menu.rs b/egui/src/menu.rs
index f99558fb5..79821059d 100644
--- a/egui/src/menu.rs
+++ b/egui/src/menu.rs
@@ -1,4 +1,4 @@
-//! Menu bar functionality.
+//! Menu bar functionality (very basic so far).
 //!
 //! Usage:
 //! ``` rust
@@ -79,7 +79,7 @@ pub fn bar<R>(ui: &mut Ui, add_contents: impl FnOnce(&mut Ui) -> R) -> (R, Rect)
 
             let clicked_outside = !ui.hovered(ui.rect()) && ui.input().mouse.released;
             if clicked_outside || ui.input().key_pressed(Key::Escape) {
-                // TODO: this prevent sub-menus in menus. We should fix that.
+                // TODO: this prevents sub-menus in menus. We should fix that.
                 let bar_id = ui.id();
                 BarState::close_menus(ui.ctx(), bar_id);
             }
diff --git a/egui/src/types.rs b/egui/src/types.rs
index bd85fc305..2c613d7b4 100644
--- a/egui/src/types.rs
+++ b/egui/src/types.rs
@@ -63,7 +63,7 @@ pub struct InteractInfo {
     /// The mouse is hovering above this thing
     pub hovered: bool,
 
-    /// The mouse pressed this thing ealier, and now released on this thing too.
+    /// The mouse pressed this thing earlier, and now released on this thing too.
     pub clicked: bool,
 
     pub double_clicked: bool,
diff --git a/egui/src/widgets.rs b/egui/src/widgets.rs
index 4e0b9dc5d..89f82d1b1 100644
--- a/egui/src/widgets.rs
+++ b/egui/src/widgets.rs
@@ -514,7 +514,7 @@ impl Widget for Separator {
 
         // TODO: only allocate `spacing`, but not our full width/height
         // as that would make the false impression that we *need* all that space,
-        // wich would prevent regions from autoshrinking
+        // which would prevent regions from auto-shrinking
 
         let (points, rect) = match ui.layout().dir() {
             Direction::Horizontal => {