Composition - 'The Rules'
Rules are there to be broken. This phrase is as true when it comes to photography as much as it is anywhere else in life. Take these lessons more as guidelines, some oft he most stunning pictures are created when the rule book is thrown away!
So whether it be 'the rule of thirds' or 'lead in lines', explore the ideas and have a play with your own images, see what works for you. Enjoy.