Series reading guide · updated 2026

Agent 21 Books in Order

Every Agent 21 book in publication order — 7 in total, spanning 2010–2016.

Publication Order of Agent 21 Books

#	Title	Year	Get it
1	Agent 21	2010	Amazon US UK
2	Reloaded	2012	Amazon US UK
3	Codebreaker	2013	Amazon US UK
4	The Wire	2013	Amazon US UK
5	Deadfall	2014	Amazon US UK
6	Under Cover	2015	Amazon US UK
7	Endgame	2016	Amazon US UK

#	Title	Year	Get it
1	Agent 21	2010	Amazon US UK
2	Reloaded	2012	Amazon US UK
3	Codebreaker	2013	Amazon US UK
4	The Wire	2013	Amazon US UK
5	Deadfall	2014	Amazon US UK
6	Under Cover	2015	Amazon US UK
7	Endgame	2016	Amazon US UK

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