Hi. It’s a simple question that we have a complicated answer 😂
you actually want to buy a brand new book, and I would recommend getting the latest edition, brand new because the data insights questions are accessible online with the unique code that comes with the book.
You can buy just the main official guide if you want more questions, you can buy all of them but you can also just wait that is what I would recommend to you.
There is because there are new additions coming out at the end of May, early June, and you may as well buy the newer additions with newer questions. But don’t delay your purchase of your prep just for the sake of buying the newer books because the new books contain only 15% percent new questions usually and 85% is still the old content.
So bottom line, buy new 2023–2024, main official guide and then buy the other ones when you need them.
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