Generally I easily found C++ as difficult to learn as Haskell. Mastering C++ takes a half-dozen books -- although that number's starting to reduce as the langu

Generally I easily found C++ as difficult to learn as Haskell. Mastering C++ takes a half-dozen books -- although that number's starting to reduce as the language is getting a bit cleaner. Haskell takes 2-3. The last is just the optics book, if you want to learn lenses, which are worth it.