John Scalzi writes science fiction that combines large speculative settings with brisk dialogue, humour and characters who solve problems under institutional pressure. Old Man's War follows seventy-five-year-old John Perry after he joins a military programme that transfers recruits into enhanced bodies for interstellar combat. The series expands into colonial politics, diplomacy and questions about who controls human expansion into space. Redshirts turns familiar science-fiction television conventions into a metafictional story about crew members who realise their survival chances depend on narrative patterns, while Lock In imagines a near future where some people interact through robotic bodies after a pandemic. Old Man's War is the clearest route into Scalzi's military space opera, while Redshirts shows the same brisk humour turned towards the conventions of science-fiction storytelling itself. Read more Less