T Nation

What Do I Call This Progression & How Do I Learn More about It?

Sometimes I see coach and others use layouts where you accumulate volume through the numbers of sets used or you even use a deload.

Example:
week 1 = 3 sets
week 2 = 4 sets
week 3 = 5 sets
week 4 = 2 sets

or

week 1 = 4 sets
week 2 = 5 sets
week 3 = 2 sets
week 4 = 6 sets

What is this topic called and does anyone know where I can find some simple information to understand how to plan this whether using an accumulation block, an intensification block, or a realization block?

Thank you in advance.