Observer book of the weekAutobiography and memoirReviewThe first and presumably last Briton ever to lead European foreign policy gives us a glimpse of an approach – more collaboration, less alpha male showboating – now sadly lost In February 2014, Catherine Ashton flew to Kyiv to hold talks with Ukraine’s embattled president, Viktor Yanukovych. For four years, she had been the European Union’s top envoy. As its first ever high representative for foreign affairs and security, Ashton was used to dealing with crises.

Argentinian president Cristina Fernández de Kirchner delivers a statement during a signing ceremony with Chinese President Xi Jinping at the Great Hall of the People in Beijing on Wednesday. Photograph: Rolex Dela Pena/APArgentinian president Cristina Fernández de Kirchner delivers a statement during a signing ceremony with Chinese President Xi Jinping at the Great Hall of the People in Beijing on Wednesday. Photograph: Rolex Dela Pena/APArgentina This article is more than 8 years oldArgentina's president Cristina Kirchner attacked for 'racist' Chinese jokeThis article is more than 8 years oldPresident Cristina Fernández de Kirchner comes under further fire following row over state prosecutor’s murder as she visits China on trade trip

Art and designSix years ago, they were told they shouldn’t be in the same building as ‘artists of calibre’. But, with a Turner nomination under their belt, life is changing for the Project Art Works collective and other neurodiverse artists ‘Everyone’s done brilliant, not just me.” I’m chatting to Lucy, an artist with Project Art Works, about the Hastings-based collective’s Turner prize nomination (they lost out to Belfast’s Array Collective in the end).

Chile This article is more than 5 years oldMan believed to be the world's oldest dies in Chile aged 121This article is more than 5 years oldCelino Villanueva Jaramillo, thought to have been born in 1896, died in hospital after puncturing his lung falling out of bed A Chilean man believed to be the world’s oldest person has died in hospital at the age of 121. Celino Villanueva Jaramillo, whom the Guardian met and interviewed last year, died on Wednesday in the southern Chilean town of San José de Mariquina.

Classical musicObituarySir Philip Ledger obituaryConductor, organist and director of music at King's College, Cambridge, who inspired players and singers alikeSir Philip Ledger, who has died aged 74, was an outstanding musician of great versatility. As a conductor, he inspired players and singers with his enthusiasm, energy and musicality; as a piano accompanist, he enhanced the performances of the distinguished soloists for whom he played – Janet Baker and Robert Tear among them; as a composer, he produced thoughtful and finely crafted works with immediate appeal.