In eight sections you will find 159 two-movers, 149 three-movers, 159 moremovers, 78 endgame studies, 332 helpmates, 241 selfmates, 172 fairy compositions and 77 retros.
Each chess problem has been selected by a panel of judges and commented on by experts. Besides that, many pages of indexes and definitions.
Can't find a better book for chess solving training or enjoying chess problems.