7 ” Book Format
In 2018 U2 launched a promotional edition of album “Songs of Experience” in a format, never used before, 7 inches.
This format is a kind of photo book where it can hold 1 or 2 5-inch discs.
Visually very attractive due to the larger size than the traditional CD editions, but more delicate since it lacks any rigid base, since it is made entirely of cardboard.
These are the editions to date.

2022
Achtung baby 30 Live
CD
U2.com