Learning resources
Questions tell you where the gaps are. They are not much good at filling them. That is what this side of the site is for.
Gems
Short pages on the areas the CBT keeps returning to, written to the same proficiency statements the questions are tagged to. Read one when a run of questions has shown you something is missing, rather than working through them all in order.
You can keep your own notes against any page and they stay on your account, so a second pass picks up where your thinking left off.
Gems come with the 199-day plan.
More about GemsReading the NMC's own material
Worth saying plainly: the NMC publishes the blueprint, the test specification, a candidate booklet and a reading list for each field, all free. Everything here is built on those documents and none of it replaces them. If you only do one thing before booking, read the blueprint for your field.