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+---
+aliases:
+-
+tags:
+- seedling
+publish: true
+---
+
+# Obsidian Markdown Cheat Sheet
+
+Every core Obsidian Markdown syntax on one note, each section verified against the official Obsidian Help. Renders entirely with built-in Obsidian features, no plugins required.
+
+## Markdown Basics
+
+Obsidian fully supports standard Markdown — headings, bold, and italic work exactly as they do in CommonMark.
+
+### Headings
+
+```markdown
+# Heading 1
+## Heading 2
+### Heading 3
+```
+
+Up to six levels; the number of # symbols sets the level shown in the outline.
+
+### Bold
+
+```markdown
+**bold text**
+```
+
+Double asterisks; double underscores (__text__) also work.
+
+### Italic
+
+```markdown
+*italic text*
+```
+
+Single asterisks; single underscores (_text_) also work.
+
+> Source: [Obsidian Help](https://help.obsidian.md/syntax) · Last verified 2026-07-18
+
+## Wikilinks (Internal Links)
+
+Wikilinks connect notes by name inside double brackets — no file path required. Obsidian can update them automatically when you rename a note.
+
+### Basic Link
+
+```markdown
+[[Page Name]]
+```
+
+Link to another note
+
+### Link with Alias
+
+```markdown
+[[Page Name|Display Text]]
+```
+
+Link with custom display text
+
+### Link to Heading
+
+```markdown
+[[Page Name#Heading]]
+```
+
+Link to a specific heading; add more # symbols for subheadings
+
+### Link to Block
+
+```markdown
+[[Page Name#^block-id]]
+```
+
+Link to a specific block; type ^ after # to pick from suggestions
+
+- Link text may not contain the characters # | ^ : %% [[ ]].
+- Block references are Obsidian-specific and will not resolve outside Obsidian.
+
+> Source: [Obsidian Help](https://help.obsidian.md/links) · Last verified 2026-07-18
+
+## Wikilinks vs Markdown Links
+
+Both formats link between notes and render identically. Wikilinks are the default; disable "Use [[Wikilinks]]" under Settings → Files and Links for maximum interoperability.
+
+### Wikilink Format
+
+```markdown
+[[Three laws of motion]]
+```
+
+Compact and vault-native; autocompletes when you type [[
+
+### Markdown Format
+
+```markdown
+[Three laws of motion](Three%20laws%20of%20motion.md)
+```
+
+Portable to other Markdown tools; URL-encode spaces as %20
+
+- Even with wikilinks disabled, typing [[ still autocompletes — Obsidian then inserts a Markdown link.
+
+> Source: [Obsidian Help](https://help.obsidian.md/links) · Last verified 2026-07-18
+
+## Embeds
+
+Prefix any internal link with ! to embed the content inline instead of linking to it.
+
+### Embed Note
+
+```markdown
+![[Note Name]]
+```
+
+Embed an entire note
+
+### Embed Heading
+
+```markdown
+![[Note#Heading]]
+```
+
+Embed a specific section of another note
+
+### Embed Image
+
+```markdown
+![[image.png|100]]
+```
+
+Embed a vault image; |100 sets the width, |640x480 sets width and height
+
+### Embed PDF
+
+```markdown
+![[document.pdf#page=3]]
+```
+
+Embed a PDF; #page=N opens a specific page, #height=400 sets the viewer height
+
+> Source: [Obsidian Help](https://help.obsidian.md/embeds) · Last verified 2026-07-18
+
+## Callouts
+
+Add [!type] to the first line of a blockquote. Thirteen built-in types with aliases; an unknown type falls back to note.
+
+### Note
+
+```markdown
+> [!note]
+> Content here
+```
+
+Information callout — the fallback for unknown types
+
+### Tip
+
+```markdown
+> [!tip]
+> Content here
+```
+
+Aliases: hint, important
+
+### Warning
+
+```markdown
+> [!warning]
+> Content here
+```
+
+Aliases: caution, attention
+
+### Question
+
+```markdown
+> [!question]
+> Content here
+```
+
+Aliases: help, faq
+
+### Collapsible
+
+```markdown
+> [!note]- Title
+> Hidden content
+```
+
+A minus collapses the callout by default; a plus expands it
+
+- Type identifiers are case-insensitive.
+- Callouts nest and support Markdown, wikilinks, and embeds inside.
+
+> Source: [Obsidian Help](https://help.obsidian.md/callouts) · Last verified 2026-07-18
+
+## Properties (YAML Frontmatter)
+
+YAML between --- lines at the very top of a note. Property types: text, list, number, checkbox, date, date & time. Default properties: tags, aliases, cssclasses.
+
+### YAML Frontmatter
+
+```markdown
+---
+title: My Note
+tags:
+ - project
+ - draft
+---
+```
+
+Note metadata; tags in YAML must be formatted as a list
+
+### Aliases
+
+```markdown
+aliases:
+ - Project kickoff
+```
+
+Alternative note names for linking and search, one per line
+
+- Markdown is not rendered inside property values — an intentional limitation.
+- Wikilinks in text or list properties must be wrapped in quotes.
+- Nested properties are not supported in the properties UI; view them in Source mode.
+
+> Source: [Obsidian Help](https://help.obsidian.md/properties) · Last verified 2026-07-18
+
+## Tags
+
+Tags are clickable keywords. Add them inline with a # prefix or via the tags property.
+
+### Tag
+
+```markdown
+#project
+```
+
+Click a tag to search for it across the vault
+
+### Nested Tag
+
+```markdown
+#inbox/to-read
+```
+
+Slashes create a hierarchy; searching tag:inbox also matches nested tags
+
+- No blank spaces — use camelCase, PascalCase, snake_case, or kebab-case for multiple words.
+- A tag must contain at least one non-numeric character: #1984 is not valid, #y1984 is.
+- Tags are case-insensitive: #tag and #TAG are treated as the same tag.
+
+> Source: [Obsidian Help](https://help.obsidian.md/tags) · Last verified 2026-07-18
+
+## Highlight
+
+### Highlight
+
+```markdown
+==highlighted text==
+```
+
+Marker-style highlight; an Obsidian extension, not standard Markdown
+
+> Source: [Obsidian Help](https://help.obsidian.md/syntax) · Last verified 2026-07-18
+
+## Strikethrough
+
+### Strikethrough
+
+```markdown
+~~strikethrough~~
+```
+
+A GitHub Flavored Markdown extension, fully supported in Obsidian
+
+> Source: [Obsidian Help](https://help.obsidian.md/syntax) · Last verified 2026-07-18
+
+## Comments
+
+Text wrapped in %% is only visible in Editing view — it disappears in Reading view and on published sites.
+
+### Inline Comment
+
+```markdown
+This stays visible %%this is hidden%% in the note.
+```
+
+Hide part of a line
+
+### Block Comment
+
+```markdown
+%%
+Draft notes here.
+Block comments span multiple lines.
+%%
+```
+
+Hide whole paragraphs
+
+- Obsidian-only syntax — the %% markers render as literal text in other Markdown apps.
+
+> Source: [Obsidian Help](https://help.obsidian.md/syntax#Comments) · Last verified 2026-07-18
+
+## Footnotes
+
+### Footnote
+
+```markdown
+A sentence with a note.[^1]
+
+[^1]: The referenced text.
+```
+
+Named footnotes like [^note] also work; they still render as numbers
+
+### Inline Footnote
+
+```markdown
+An inline footnote.^[The note text goes here.]
+```
+
+Caret goes outside the brackets; works in Reading view only, not in Live Preview
+
+> Source: [Obsidian Help](https://help.obsidian.md/syntax#Footnotes) · Last verified 2026-07-18
+
+## Tables
+
+### Basic Table
+
+```markdown
+| First name | Last name |
+| --- | --- |
+| Max | Planck |
+```
+
+Cells need no alignment, but the header separator must contain at least two hyphens
+
+### Column Alignment
+
+```markdown
+| Left | Center | Right |
+| :-- | :--: | --: |
+| a | b | c |
+```
+
+Colons in the separator row set left, center, or right alignment
+
+- Escape a pipe inside a cell as \| — required for wikilink aliases and image sizes in tables.
+- In Live Preview, right-click a table to add, move, or sort rows and columns.
+
+> Source: [Obsidian Help](https://help.obsidian.md/advanced-syntax#Tables) · Last verified 2026-07-18
+
+## Math (LaTeX)
+
+Math expressions render with MathJax using LaTeX notation.
+
+### Inline Math
+
+```markdown
+$e^{2i\pi} = 1$
+```
+
+Single dollar signs render math within a sentence
+
+### Block Math
+
+```markdown
+$$
+\sum_{i=1}^n x_i = \frac{n(n+1)}{2}
+$$
+```
+
+Double dollar signs on their own lines render a display block
+
+> Source: [Obsidian Help](https://help.obsidian.md/advanced-syntax#Math) · Last verified 2026-07-18
+
+## Mermaid Diagrams
+
+A mermaid code block renders as a diagram — flowcharts, sequence diagrams, timelines, and more.
+
+### Flowchart
+
+````markdown
+```mermaid
+graph TD
+ Biology --> Chemistry
+```
+````
+
+Rendered as a diagram in Reading view and Live Preview
+
+### Sequence Diagram
+
+````markdown
+```mermaid
+sequenceDiagram
+ Alice->>John: Hello John
+ John-->>Alice: Hi Alice
+```
+````
+
+One of many Mermaid diagram types Obsidian supports natively
+
+- Attach the internal-link class to a node to turn it into a note link.
+
+> Source: [Obsidian Help](https://help.obsidian.md/advanced-syntax#Diagram) · Last verified 2026-07-18
+
+## Unsupported & Edge Behavior
+
+Obsidian supports CommonMark, GitHub Flavored Markdown, and LaTeX math — with a few deliberate exceptions worth knowing before you port notes.
+
+### Markdown Inside HTML
+
+```markdown
+
+This **will not** be bold.
+
+```
+
+Obsidian intentionally does not render Markdown syntax inside HTML elements
+
+### Block References Elsewhere
+
+```markdown
+[[Note#^block-id]]
+```
+
+Block reference links only resolve inside Obsidian; they break in other Markdown tools
+
+### Underline
+
+```markdown
+underlined text
+```
+
+No Markdown syntax exists for underline; raw HTML works, but Markdown inside HTML is not processed
+
+- Single line breaks are treated as a continuation of the paragraph in Reading view, matching standard Markdown soft-wrap behavior.
+
+> Source: [Obsidian Help](https://help.obsidian.md/obsidian-flavored-markdown) · Last verified 2026-07-18
+
+## Markdown vs Obsidian: Compatibility
+
+| Feature | Syntax | CommonMark/GFM | Obsidian | Notes |
+| --- | --- | --- | --- | --- |
+| Headings, bold, italic | `# H1, **bold**, *italic*` | yes | yes | Core CommonMark syntax, identical in Obsidian. |
+| Strikethrough | `~~text~~` | partial | yes | GFM extension, not part of CommonMark. |
+| Highlight | `==text==` | no | yes | Obsidian extension; shows as literal == elsewhere. |
+| Tables | `\| A \| B \|` | partial | yes | GFM extension; Obsidian adds Live Preview table editing. |
+| Task lists | `- [x] done` | partial | yes | GFM extension; any character inside the brackets marks a task complete in Obsidian. |
+| Footnotes | `[^1]` | partial | yes | GFM extension; inline ^[...] footnotes are Obsidian-only. |
+| Tags | `#tag` | no | yes | Renders as a plain heading-less #word elsewhere; searchable metadata in Obsidian. |
+| Wikilinks | `[[Note]]` | no | yes | Obsidian-only; renders as literal brackets in CommonMark/GFM. |
+| Embeds | `![[Note]]` | no | yes | Obsidian-only transclusion syntax. |
+| Callouts | `> [!note]` | partial | yes | GitHub alerts support five fixed types; Obsidian adds 13 types, aliases, folding, and nesting. |
+| Comments | `%%hidden%%` | no | yes | Visible as literal text outside Obsidian; hidden in Obsidian Reading view. |
+| Math | `$x^2$` | no | yes | Not in CommonMark or GFM core; Obsidian renders via MathJax. |
+| Mermaid diagrams | `` ```mermaid `` | partial | yes | GitHub.com also renders mermaid blocks; plain CommonMark/GFM treat them as code. |
+| Properties (frontmatter) | `---
key: value
---` | no | yes | Not parsed by CommonMark/GFM; Obsidian turns the YAML block into typed note properties. |
+| Markdown inside HTML | `**text**
` | partial | no | Obsidian deliberately skips Markdown inside HTML elements; CommonMark processes inline Markdown around HTML. |
+
+
+## Source
+
+This cheat sheet is maintained at [markdowntools.io](https://www.markdowntools.io/obsidian-cheat-sheet), where it is also available as a [vault-ready download](https://www.markdowntools.io/downloads/obsidian-markdown-cheat-sheet.md) and a [printable PDF](https://www.markdowntools.io/pdf/obsidian-markdown-cheat-sheet.pdf). Related Hub note: [[Markdown Syntax]].
+
+%% Hub footer: Please don't edit anything below this line %%
+
+# This note in GitHub
+
+
diff --git a/04 - Guides, Workflows, & Courses/for Beginners.md b/04 - Guides, Workflows, & Courses/for Beginners.md
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@@ -14,6 +14,7 @@ These guides will help you get started with [[Obsidian]] and related topics.
- [[Obsidian Help]]
- [[Obsidian Garden]]
- [[Markdown Syntax]]
+- [[Obsidian Markdown Cheat Sheet]]
## Video Guides
- [[YouTube]]