The best Raspberry Pi kit depends on the use-case. Very simple kits can include just the Raspberry Pi, plus optional power supply and protective case. Raspberry Pi kits also often contain a memory card that has an appropriate operating system pre-installed. More sophisticated kits can include a variety of other components and guided learning experiences. In this category, we are particularly fond of the Piper and Kano Computer Kits, which are designed to teach kids about how computers work, by getting them to build their own!