A free app for Android, by Project Fast Hub.

The Project Management textbook is an open source textbook for learning project management skills. The app provides a free textbook with an in-app purchase to unlock more chapters.

How to use this app:

You can use the in-app dictionary to look up words you do not know. You can add notes to the highlights to help you remember the information better. You can use the “Add Notes to Highlight” function to add notes to the highlights in the text. You can use the “Dictionary” function to look up a word or phrase. You can add a bookmark to a particular page to make it easy to return to that page later.