A nice touch is the certificate of completion at the end of this activity book.
G.T. Karber Chr Murdle júnior: Detectives a la caza / Murdle Jr.: Sl (Paperback)
This activity book has hidden picture puzzles that take time to solve.
G. T. Karber Mini Murdle Junior: Summer Fun (Paperback) (UK IMPORT)
This activity book includes tangram puzzles that challenge spatial reasoning.
