Checklist is made for modpacks. It adds an easy way for players to check off tasks as they go along. It doesn't add any automatic checking for task completion and requires the player to manually check tasks off.
Right click the book, or right click the task table (that has a book) to open the task GUI.
Right click to add the book the table, shift+right click to pickup the book.
This mod took inspiration from Simple Achievements
There is a config file under "config/checklist/config.json" which contains a boolean for "firstJoin", this will allow you to give the player a book when they first join the game.
Tasks are stored in the "config/checklist/tasks.txt" file.
Each new line is a new task.
When a "#" is prefixed to a line, it will become normal text, this will allow you to put comments in the book.