It depends on what your goals are... I haven't read 'Practice and Principles', but I assume it focuses mostly on the OOP programming paradigm. I'd explore the

It depends on what your goals are... I haven't read 'Practice and Principles', but I assume it focuses mostly on the OOP programming paradigm. I'd explore the functional programming paradigm. I say paradigm because it's possible to implement the functional paradigm in a traditionally imperative/OOP language like C++. (And it's possible to implement OOP/imperative paradigm in traditionally functional languages like Scheme/Lisp.) So learning functional concepts can improve your C++ programming, at both the "strategic" (program design) and "tactical" levels (implementation in code). Quick summary of the promises of functional programming: 1. Program design/code that is easier to reason about/debug. 2. Programs that are shorter, yet more descriptive. 3. Programs that are more performant. 4. Programs that can be easily parallelized. I believe SICP teaches functional concepts (via Scheme/Lisp), but recently I found more accessible/practical resources. (My university's intro to programming class used parts of SICP, mostly the beginning but FP didn't truly "click" until I found the resources below.) Here is my short list of best introductions to practical FP, strategies and tactics: - https://hw.leftium.com/#/item/18043058 https://hw.leftium.com/#/item/18043058 - https://hw.leftium.com/#/item/21879368 https://hw.leftium.com/#/item/21879368 - https://youtu.be/8JKjvY4etTY https://youtu.be/8JKjvY4etTY - More: https://project-awesome.org/stoeffel/awesome-fp-js https://project-awesome.org/stoeffel/awesome-fp-js --- How to Design Programs is also a good book: https://htdp.org/ https://htdp.org/