The Royal Society Young People's Book Prize is awarded annually in the United Kingdom for the best science information book, and the winning book is chosen by panels of young people. This article discusses the findings of a study of the responses to the books and to their judging experience of young people who participated on panels in the 2011 Royal Society Young People's Book Prize. Interviews were conducted with 46 young people, aged from 8 to 14 years, from across the United Kingdom. The nature of contemporary non-fiction books is discussed, specifically science information books. The impact of their design and format on reading is explored, as is the social nature of reading, which was a consequence of the judging panel context. The young people had opinions on the age range for which each book was most suitable, but they generally did so in such a way as to include themselves. It was found that their judging responsibilities contributed to these young people displaying a positive reading identity and sense of self-efficacy.