Dedicated Dedication

I was reading my textbook and the front cover contains a very interesting dedication. It reads "This book is dedicated with love to the memory of Edith and Harold Cohen". The problem is it includes a photo. That seems a lot like one you find on graves. Rather disconcerting actually if you ask me. What ever happened to wittier and not so depressing books. Does not bode well for the material at all i must say. HAHA.