# Navigating around this book ## Content Markers This HackMD book uses some marks to more easily identify certain aspects and their current state For instance, I use the :warning: emoji to signify something is under construction or otherwise unfinished. | Usecase | Marker | |:------------------------------------------:|:------------------------:| | Under Construction | :warning: | | Verified Section | :heavy_check_mark: | | Unverified Section | :question: | | Needs re-formatting or content adjustments | :heavy_exclamation_mark: | Unmarked sections are made by me personally, though might still have the :warning: tag inside if they're being edited ## Credits ### You can see who wrote something at the top of any section using their profile picture. ## Word definitions and help Sometimes some words are underlined with small dots, in this case, you can hover over them to reveal a definition or a help to understanding the word. Look at this for example! *[Look at this for example!]: Hello! :D