VLeBooks uses pop-ups. This means that when you click the Read Online option the e-book is opened in a new browser tab or window.
If you you receive an error message saying that the pop-up window is blocked or if you can't open a book, you will need to enable pop-ups on your computer or device. You can choose to only enable pop-ups for VLeBOOKS and don't have to enable for all pop-ups.
The website that you need to allow on your pop-ups is https://www.vlebooks.com.