Fung Shway – Feng Shui

No good to place the book shelf next to the bedroom door.
As you said that when you opened the door you see the shelf first,
This is a book shelf. In mandarin word books is "shu" it means loss or not winning and shelf is "jia" means sounds like comfirm.
Therefore this is the first thing you have when you open the door. You have loss in the first place.Even when you are going out of the room you do meet this bad omen. Move it away, further in.References :

Books are best placed in the Knowledge section of a room. As you enter the room, this section is in the bottom left hand corner.

Take a look at this website to see the Bagua which shows all the sections and what part of your life they relate to and what items you should and should not place in them. Then you can judge where the bookshelf would be best placed:

http://www.moonslipper.com/fengshui.htmlReferences :