4to 192pp. Hardcover in illustrated laminated boards in excellent condition but with no d/w, text in pristine, as-new condition totally devoid of any flecking or foxing or even prior owner notations. For all children hovering on the brink… to play or not to play….would it be too difficult?….who would teach them? This wonderful book provides the answers with the basic principles being explained in simple language using amusing entertaining illustrations as well. Very popular with this being the 12th Impression and and this volume is in amazing condition for a text approaching fifty years of age now.