I've found the Everyman chess opening books pretty useful. I have one for opening as white and one for black with possible responses to E4 and d4. But the main thing is you have to play them to death. You can't switch between opening E4 as white then the next game play C4 and something else the next game. It may get boring but the more you see it the better.
Fundamental Chess Openings actually was first written in Dutch (De wereld van de schaakopeningen). I don't know if you bought it or some other one. Emms' book is a good one for beginners, it discusses the major ideas related (like controlling the center) to openings, not so much openings themselves.