Our most popular stories of the week

1. After 30 days of previews, Yahoo has launched its new identity . The logo was designed over a weekend by a team led by Yahoo chief executive Marissa Mayer.

2. Type designer Fabien Delage has accused the Home Office of using his typeface without permission in its controversial anti-illegal immigrants van campaign.

3. Is product design still about making things? We look at the ‘new wave’ of designers engaging with economic and social issues.

Our most popular Tweet of the week

Home Office accused of illegal font use on illegal immigrants campaign: http://t.co/pTFmDbRaaa

— Design Week (@Design_Week) September 12, 2013

Our favourite Tweets of the week

Nevermind your Sunday roast. Get down to our @L_D_F edition of @DesignCrime5 this Sunday and roast some bad design: http://t.co/8MJHCdfdUm

— Steve Price (@PlanBstudio) September 11, 2013

So many nuggets in this article and feel totally part of sentiment. @Design_Week : http://t.co/lUCdpLxw1M —design as process #designthinking

— Ben Brookbanks (@benbrookbanks) September 10, 2013

Back by popular request: customer communications, East End style pic.twitter.com/zsQWlejwXU

— Tim Rich (@66000mph) September 10, 2013

Quote of the week

‘I’m not a pro, but I know enough to be dangerous.’ Yahoo chief executive Marissa Mayer, who led the company’s rebrand project , on her Adobe Illustrator skills.

Image of the week

London Design Festival kicks off this weekend, and the Endless Stair centrepiece looks like a highlight.

Our favourite website

It’s the London Design Festival website of course. Check out all the events happening over the next week. We recommend the Graphics weekend at the V&A, on 14 and 15 September…

Design stories in the national press

The Guardian profiles Peter Saville, who receives the London Design Medal next week. ‘I’m not here to make money. I’m here to try and make something better,’ he says.

There’s an analysis of the TSB bank logo, which is returning to the UK high street after an 18-year hiatus, on the BBC .

And the Daily Mail looks at how nervous grooms-to-be are using 3D printing to create risk-free wedding ring prototypes.