Classic English Language Arts

My 15 year old son, another teen and myself all meet about once a week to study history, literature and writing together.  One resource we are currently using is Robert Einarsson's Traditional English Sentence Style workbook.  We are enjoying and appreciating this resource very much.  It explains everything very clearly, concisely, systematically and yet deeply.  And Prof. Einarsson provides it for free!  I think that is awfully generous of him.  Thank you, Professor Einarsson!