The Observer critics’ guide to the summer holidays

Make cultural hay while the sun shines with our suggestions for reading, viewing and listening, from dreamy R&B to vintage Keanu Reeves to op art in the country Pop
Beyond the boutique tag, Houghton festival in Norfolk (10-13 August) specialises in high-end electronic music, from minimal techno to reggae. Sensitively curated by Craig Richards, artist-cum-Fabric DJ, it boasts a cogent bill – Ricardo Villalobos headlines, Nicolas Jaar and Floating Points promise lengthy DJ sets – a