shopping this book:Maples of the World,Maples for the Gardens ,and Japanese Maple by Vertress,editor by Timber Press ,Amazon avaible,for know how maple is different about another tree ,every maple species and cultivar use first book,the second book speak about bark ,grown ,origin and how use maples in the garden,III°book is the better book about Japanese maples cultivar (Jm)for Maple Society reply is of Richard ...ciao alex
