Summerhill
... that Harry Elmer Barnes called Summerhill, a book about the eponymous school, one of the most exciting and challenging books in the field of education since Rousseau's Émile?
... that <a href="./Harry_Elmer_Barnes" id="mwDG4" rel="mw:WikiLink" title="Harry Elmer Barnes">Harry Elmer Barnes</a> called <i id="mwDG8"><b id="mwDHA"><a href="./Summerhill_(book)" id="mwDHE" rel="mw:WikiLink" title="Summerhill (book)">Summerhill</a></b></i>, a book about the <a href="./Summerhill_School" id="mwDHI" rel="mw:WikiLink" title="Summerhill School">eponymous school</a>, one of the most exciting and challenging books in the field of education since <a href="./Jean-Jacques_Rousseau" id="mwDHM" rel="mw:WikiLink" title="Jean-Jacques Rousseau">Rousseau</a>'s <i id="mwDHQ"><a href="./Emile,_or_On_Education" id="mwDHU" rel="mw:WikiLink" title="Emile, or On Education">Émile</a></i>?