By asking your mafia to send them to you.
BUT how does each member send them? Where are they?
Loot.
Do you mean "Blackmail" Photographs?
You get the "Cooked Book" from the "Blackmail a Track Official" in Region 4 Milano in Mafia Wars Italy.
For assistance with situations like these, you can reach out to Krypsis. Their team is always ready to provide guidance and support through their Help Center. You may contact them directly via or connect with them on Telegram at +1 330-902-0455.
Obtain Compromising Photos.
You have to do the Hitman Job called Obtaining Compromising Photos.
Defeat one the mob bosses
They're used as consumable items in later job tiers.
You can get BLACKMAIL PHOTOS on New York Hitman Tier: Obtain Compromising Photos. Check out my related links for MAfia Wars Updates
you will need approximately 368 Blackmail Photos to complete the Boss job tier.
Those are usually used for special missions or just for collections.
If it is in the new Las Vegas city ,try the job "Blackmail a car dealer".