At home I have a series of small square fridge magnets (about 25mm by 25mm and about 1mm thick). If I select two of these fridge magnets and place them together then, as you would expect, they attract one another. However the interesting observation is that sometimes the fridge magnets are only loosely bound and can be slid over one another without any sudden jolting of attraction. If I then rotate either of the fridge magnets 90 degrees (clockwise or anticlockwise) the magnets have greater attraction but only in certain positions (unlike all positions as was the case previously) - in this setup they attract each other most strongly when the two bases of the magnets don't cover each other up completely. This effect occurs with any and all of the magnets I select off the fridge. I am yet to study magnetism in detail however I am interested to know how this phenomenon can be explained in terms of magnetic fields. Thanks.