In 2010, 21 st Century Fox released Percy Jackson and the Lightning Thief: an action-adventure film aimed at young adults, based on the first of a series of five books by the American author, Rick Riordan. To date, the book series, Percy Jackson and the Olympians, has sold over 20 million copies worldwide (Mead 2014), and the film has grossed over $200 million (Box Office Mojo 2010). A sequel to the film, Percy Jackson: Sea of Monsters, was released in 2013, also exceeding $200 million in global receipts (Box Office Mojo 2013). A number of spin-off productions have been created, including a second five-book series, The Heroes of Olympus.The series' plot, inspired by the Harry Potter series of novels/films, sees the eponymous Percy, a struggling student from a troubled home in New York, discover that he actually possesses superhuman parentage: his full name is Perseus, and he is the son of the Greek god of the sea, Poseidon. Called by Poseidon and the other gods to undertake a series of quests, the books and films detail Percy's various adventures, alongside several fellow teenage demigods, which culminate with him successfully defending Olympus against a host of invading titans. Percy is offered immortality as reward, but refuses, so that he might stay with his friends on Earth.In its writing, the series is perhaps unremarkable, and it has encountered little critical attention (cf. Morey and Nelson 2015). It does, however, provide a useful point of entry for examining the representation of dyslexia in popular culture. Originally, the tales were told by Riordan to his son, who has dyslexia and attention deficit hyperactivity disorder (ADHD), as bedtime stories. To let his son know, in Riordan's words, "that being different wasn't a bad thing", Riordan gave Percy dyslexia and ADHD (Riordan 2005). Both are central to Percy's character and reformulated by Riordan into gifts, contrary to common perceptions of dyslexia and ADHD, especially from educational perspectives, as learning difficulties (Rose 2009). While such educational perspectives have limitations, they are useful in summarising the difficulties experienced by those with dyslexia -leaving aside, for the moment, the question of how best to conceptualise the cause of such difficulties (see below). 1 The definition of the Rose Report (2009, 10), on dyslexia and literacy difficulties, remains the most influential and commonly-cited definition of dyslexia in the UK: 1 The paper uses 'dyslexic' as adjective, but not noun. This reflects usage by research participants interviewed for the UK Dyslexia Archive (see below).