CDC? (1984):

 The reader guesses what the letters and numbers are supposed to represent in actual words. The book is somewhat more sophisticated in content than William Steig’s previous book CDB! To figure out the word puzzles, the reader needs to read the letters, numbers, and symbols aloud, pronouncing their names, not sounding them out. The picture accompanying each puzzle helps give the reader hints to the coded phrase

The Rails I Tote (1987):

Each of Mr. Manson’s puzzle books creates a new genre of puzzles and The Rails I Tote is no different. Each of the 45 puzzles in Rails I Tote has a wildly imaginative story on one page and a beautiful illustration on the facing page. [more on Rails I Tote]

The Practical Alchemist (1988):

The Practical Alchemist, like Mr. Manson’s other puzzle books, introduces a new genre of puzzle. Unlike The Rails I Tote, the 45 individual puzzles of The Practical Alchemist are all connected as part of a single overall puzzle. While not entirely an immersive puzzle experience, The Practical Alchemist is immensely challenging and a ton of fun. [more on Practical Alchemist]

The Egyptian Jukebox: A Conundrum (1993):

In this picture-cum-puzzle book, every picture is full of clues which are designed to lead to the whereabouts of Hamilton Hasp, an eccentric millionaire who has disappeared. The drawers of his Egyptian jukebox each contain objects from a specific geographical location and have a corresponding story from Hasp’s life.