LOL, my name is RM and I am a dietaholic...
I do know one thing, to lose weight you have to work with your body, and your anabolism or you are doomed to failure.
I suppose starting point is are you a couple of pounds overweight, fat, obese or morbidly obese, each starting point may need a different approach.
Next, what do you like to eat? You need to find a diet that you actually can follow and can believe in. Example, I am very obese, and I want to lose a bunch of weight quickly and safely, so I have chosen to start my journey on a meal replacement diet. It is very easy, and effective, and I like the food, but I hate that it isn't actually food, I'm living on a bunch of synthetic crap and genetically modifies soy protein, but I love that it works.
Once I get down to nearer a 'normal' weight problem I will transfer to a diet that is based around high protein and low carb, because that is my success area. I will also be looking to eat mainly organic, and fresh healthy 'real' food.
So very many diet books out there, so you have to do the first leg work..
What do you like to eat
What do you avoid.
What is the problem that has caused you to gain, and is that something that you need to address as well as your diet changes.
Tell us more and we will try and help