The OECD’s “Survey of Adult Skills” is not the only study to suggest that improvements in cognitive ability are stalling across the rich world. You do not need a first-rate mind to sense trouble ahead 👇.

Adults have grown less literate over the past decade, new data suggest. One researcher speculates that many are getting much less practice than they used to at reading long and complex texts. Blame TikTok, perhaps 👇.

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The OECD has released the results of its once-a-decade survey on adult intelligence. Although some countries will be pleased, others score badly. Zoom out, and the overall picture is one of worsening basic skills across the rich world 👇.

The OECD has released the results of its once-a-decade survey on adult intelligence. Although some countries will be pleased, others score badly. Zoom out, and the overall picture is one of worsening basic skills across the rich world

Are you smarter than a ten-year-old? A shockingly large portion of adults in the rich world might not be, new data suggest 👇.

Do EVs actually have advantages over the standard car? Our interactive chart ranks 122 countries to see where it makes the most sense to go electric 👇.

As Russia’s advance grinds on, war fatigue among Ukrainians is deepening. Two maps and a chart reveal the shift in tone, between last year and now: 👇.

An interactive guide to climbing the career ladder in Britain 👇.

How much cheaper, and greener is it to drive an electric car? It depends. Our clean car index shows that costs and emissions vary by country. Find out where yours ranks: 👇.

British workers want the chance to progress: to gain a foothold on the career ladder and then to climb it. Our new interactive tool ranks employers by how well they help their staff to move on and up 👇

The share of Ukrainians determined to fight “until victory” has fallen from 63% to 38% since last year, according to new polling by Gallup. What explains the fatigue? 👇.

Electric vehicles are quieter, smoother and nippier than their petrol counterparts. Low running costs and their environmental impact are also part of the appeal. But how cheap and green are EVs really? It varies by country 👇.

New polling shows that just over half of Ukrainians support negotiating a resolution to the war as soon as possible. Some say that they are open to territorial concessions 👇.

These five charts explain Donald Trump’s path to victory in America’s election. They show a sizeable shift away from the Democrats, and towards MAGA Republicanism 👇.

Data suggest that Hispanic voters moved further towards Donald Trump than any other group. The shift was especially stark among men. These charts show where else he has picked up support since 2020 👇.

In his election campaign, Donald Trump bet big on young men who have historically not had much trust in politics. There is little evidence from the exit polls that the bros helped seal his comeback, however. Find out what did, here 👇.

With 95% of votes counted, Mr Trump had increased his vote share in 89% of counties compared with 2020. That was true even in reliably blue states, such as New York. Our visual analysis digs deeper into the results 👇.

Donald Trump’s victory came swiftly and decisively. With 95% of votes counted, the data show that 47 counties flipped from Democrat to Republican. These charts explain his remarkable comeback 👇.

This presidential election will be decided by the relatively small number of voters who can still be swayed by either candidate. Our build-a-voter model shows where Kamala Harris and Donald Trump look particularly vulnerable 👇.

Asian voters are one of the fastest-growing demographic groups in America, but their political leaning has been hard to pin down. Our build-a-voter model suggests that a growing number identify as independents 👇.