Please find a link below to an Introduction and user guide for IDL Literacy.
https://drive.google.com/drive/folders/1srVI5ve350yGUL8J4PqBeQWHOYgB-bdt
Below is a link to a guide to the different lessons.
https://drive.google.com/drive/folders/1srVI5ve350yGUL8J4PqBeQWHOYgB-bdt
