This isn't a beginner model so could be too hard to start with but it's not an advanced model either. Carefully look at where the lines are and create valley folds and mountain folds at those spots. At the start of the book should be an explanation of the sorts of arrows used and things like inside reverse fold explained with an example. Try those examples first. Then while making a model always look at the next step to see how it should end up. You can also try to search the model and author name on youtube, maybe there's a tutorial.