These tend to be smaller, lighter and quieter, with a good, fast typing action, but it’s not always so clear that you’ve hit the key hard enough for the keypress to register, which can lead to documents full of typos. On the other hand, you’ve got chiclet or tile keyboards, with low-profile, square keys and the mechanism hidden underneath. These tend to have more travel, which makes it easier to be sure that every keypress is registered, but they’re usually bigger and heavier and can be more tiring to use over long periods. On the one hand, you’ve got traditional keyboards with raised, clicky keys. Once you’ve worked that out, it comes down to style.