Pequod's calls its signature pizza pan-style, a close relative of Chicago deep dish. Its own explanation starts with two different meanings of crust: the dough beneath the filling and the cheese around its edge. The restaurant describes the bottom as pillowy, in contrast to a crumbly shell.
The edge has a separate job. Dough is pressed into the pan without being pushed all the way up its sides. Slices of mozzarella are arranged against the pan wall. During baking, that cheese forms the caramelized border; afterward, a thin spatula frees it from the pan. The dark perimeter is therefore something the kitchen deliberately makes and preserves.
This gives you a more specific reason to choose Pequod's than another photograph of a tall slice. Look at where the cheese meets the pan, then at the dough underneath. The kitchen's description also puts toppings above the sauce after the cheese layer. Even among thick Chicago pizzas, the order of the ingredients is not a single fixed rule.
The name on a reservation matters too. The original Pequod's is in Morton Grove, outside Chicago; the Clybourn Avenue restaurant opened in 1992. The company's pages disagree about the original restaurant's opening year, so there is little value in building a visitor's decision around a falsely tidy anniversary. For a Chicago meal, select 2207 North Clybourn Avenue deliberately.
Book ahead if this is an essential stop. Pequod's recommends reservations through Tock because walk-in space is limited. Its FAQ gives different lead-time suggestions for weekday lunch, weekend dinner and larger parties, and warns that major city events change the picture. Those are planning signals, not a promise that a particular table will be available.
There is an unusually practical detail for carryout: pizzas are normally left uncut, and cutting can be requested. That makes sense to know before opening the box in a hotel room. The FAQ directs Chicago pickups to neighboring Whale Tale on Friday and Saturday from 4–9 p.m. and Sunday from 5–8 p.m. Follow the instructions for the actual order rather than waiting at the wrong counter.