Learning the nuts and bolts of essay writing is not easy for some students.  Like any skill it is imperative that one practices with precision from the outset.  If there is a book that teaches essay writing, I would recommend as it covers all areas from a great educator.   From West London English and Media teacher, English and media tuition and homeschooling in Harrow, London http://paltip.com/westlondonenglish/!4kx3