F1 23

The compendium is the sticker book located in F1 World. To complete a set, you will need 1-4 stickers that combined form a picture. It is a matter of luck for which stickers you collect (duplicates are unfortunately possible), but if you're lucky, you'll get one of the 1-sticker sets.

In order to get stickers, you can progress through the Braking Point story mode or do F1 World challenges/races or Multiplayer Races. Stickers can also be earned in the Podium Pass.

Once you have stickers, go to the compendium in F1 World, press A to enter any of the chapters, and then hit X so that it filters to only show the entries you have stickers for (saves a little time) and then just add them as you go. This can be very easily done via progression for Braking Point and all the career/multiplayer races you need to do for other achievements.