In comics, those boxes are known as frames or cells. They help to organize the sequence of events and images for the reader. Sometimes, they can vary in size and shape to add emphasis or create a certain visual effect.
The key is to choose the right size boxes. Put acid-free tissue paper between the comics to prevent damage. Also, store the boxes in a cool, dry place away from direct sunlight.
The text boxes in comics are commonly referred to as speech bubbles. They help convey the dialogue or inner thoughts of the characters. Sometimes, there are special types like caption boxes for providing background info or commentary.
It's not too complicated. Open Photoshop, select the Text Tool, and then draw a rectangle shape for the text box. Customize the size, color, and border as you like.
The number of comics that long boxes can hold varies. Smaller-sized comics might fit more, while larger ones take up more space. Generally, you can expect anywhere from 180 to 220 comics in a typical long box.