What are cherub books?

It goes :

-The Recruit

-Class A

-Maximum Security

-The Killing

-Divine Madness

-Man VS Beast

-The Fall

-Mad Dogs

-The Sleepwalker

-The General

-Brigands M.C.

-Shadow Wave (Coming Soon)

And for the Henderson's Boys series:

-The Escape

-Eagle Day

-Secret Army

-Grey Wolves (Coming Soon)