1. Introduction to flame retardant polymer systems 2. Nanoparticles and flame retardancy in polymer systems 3. Flame retardant testing 4. Flame retardant properties of polymer nanocomposites based on new layered structure nanoparticles 5. Flame retardant properties of polymer/ graphene nanocomposites 6. Flame retardant properties of metal oxide/polymer nanocomposites 7. Flame retardant properties of POSS/polymer nanocomposites 8. Flame retardant properties of fullerene and nanodiamond based polymer nanocomposites 9. Flame retardant properties of Mxene based polymer nanocomposites 10. Nano-biobased particles as flame retardant for polymers 11. Flame retardant nanocomposites in various key application sectors 12. Environmental challenges and future prospects of flame retardant polymer nanocomposites