The main container on your home screen displays your favorite books in the form of tiles.
You can select the books you want to appear on your home page, by clicking on the small star on the top right of each tile.
The book then disappears from your home page without being deleted. It still appears in the list of books on the left, but with a "off " star.
Simply click on this star again to make it reappear on the home page.
On this home page, the creation of a new book is done simply by clicking on the "+" booklet.