David Didau is a freelance writer, blogger, speaker, trainer and author. He started his award-winning blog, The Learning Spy, in 2011 to express the constraints and irritations of ordinary teachers, detail the successes and failures within his own classroom, and synthesise his years of teaching experience through the lens of educational research and cognitive psychology. Since then he has spoken at various national conferences, has directly influenced Ofsted and has worked with the Department for Education to consider ways in which teachers' workload could be reduced. He is the author of the hugely successful titles The Secret of Literacy, in which he urges teachers to "make the implicit explicit", and What If Everything You Knew About Education Was Wrong?, in which he turns his attention to the myriad unexamined assumptions that underlie education and explores how schools might realign their practices with how children actually learn.