Combine flour, yeast, salt, and sugar in a large bowl.
Add warm water and olive oil, then mix until a shaggy dough forms.
Turn dough onto a floured surface and knead for 8 to 10 minutes until smooth and elastic, adding flour sparingly if sticky.
Lightly oil a clean bowl, place the dough inside, turn to coat, cover, and let rise in a warm place for 1 to 1½ hours until doubled in size.
Punch down the dough and divide into 3 equal balls. Let rest for 10 to 15 minutes before shaping.
Preheat oven to 475–500°F (245–260°C). Roll or stretch each dough ball into 10–12 inch circles and brush edges with olive oil.
Spread pizza sauce over the dough, add mozzarella, and top with your favorite toppings.
Bake pizzas for 10 to 15 minutes until crust is golden and cheese is bubbly, using a pizza stone or lowest oven rack if available.