Typography has to look good and be easy to read, but it also has to work well with the technical aspects of your design. For example, if the tracking between characters is too high, or worse, too low, even the most well-written block of text is suddenly rendered useless. Misalignment, incorrect line length or hierarchy, and poor contrast affect readability. Your choice of font affects the readability of a text in several ways. It’s all about spacing words and sentences to allow the user to easily interpret and understand content in a way that makes sense. Readability refers to how words and blocks of text are arranged in a design. If someone cannot discern between an 0 and an O, or if they’re squinting trying to read a line of text, then it’s a clear sign of incorrect typography. Legibility is everything, and choosing the right font will significantly impact the overall user experience of your mobile apps. Legibility refers to how well one individual letter or character can be distinguished from another in a typeface. The rule of thumb for a good UI font is legibility, readability, and usability.

Needless to say, choosing the right font is a lot of pressure. You need to be able to anticipate the user's thoughts and emotions, then take steps in your design to solve them. That’s why understanding human psychology is a critical component of UX/UI design. Even if they can’t pinpoint why, stakeholders, clients, and users alike may subconsciously know there’s something not-quite-right with your design.

Lousy typography is easy to spot, even for non-design-oriented users.

Even a slightly misaligned header will repel a user instantly or leave them feeling a little uneasy about the entire experience. Unfortunately, using the wrong font has the opposite effect. It can communicate more to a user in a single glance than a wall of text or branding ever could while keeping them engaged. The right font choice can work wonders for any design. Without a doubt, fonts are one of the most critical elements in UI design. There’s no denying it-bad typography sticks out.

Best free fonts for logos