What extras come with the Spy x Family volumes?

The collected volumes are not bare reprints of the Jump+ run. Beginning with volume 2, the books add Extra Missions, full bonus chapters printed between the numbered Missions; volume 4 introduced the shorter Short Missions, and the pattern has held since, so each tankobon holds at least one story that first appeared between its covers. The chapter lists in this Library record them volume by volume.

The second extra layer is the Top Secret material: dossiers and single-topic pages Endo draws for the books. The volume 3 set, preserved in the English edition, runs to Yor's Week in Fashion and a step-by-step How Yor Does Her Hair, the series' tradecraft applied to its assassin's morning routine. These pages are why the physical volumes keep selling to readers who can read the chapters free: the book is the only complete version of the text.

Once, the extras left the page entirely. Volume 8, on November 4, 2021, was the first volume of the series to bundle goods, a preorder special edition with four rubber mobile straps of the Forger family illustrated by Endo. It remains the exception rather than the pattern: Spy x Family's volumes argue for themselves with print extras, and the strap edition is documented here as the single bundled variant of the early run.