> [llms.txt](https://invisibledetails.com/llms.txt)

# Invisible Details — The Art of Predictable Interfaces

> You can tell when an interface feels right. Saying why is the hard part.

A course on the invisible details of interface design: the timing, weight and small decisions that separate good software from great. For designers, developers and product people who care about interface quality.

The course has two chapters: Notes (the ideas - states, feedback, inputs, speed - with practical examples) and Practice (real UI components broken down decision by decision).

## Notes

### Foundation

- Introduction
- Learning to notice
- Small details that add up
- Predictability is a feature

### Designing Interface Behavior

- Designing States
- Feedback is a conversation
- Forgiving Input
- Interfaces should remember

### Interaction Feel & Usability

- Speed is a feeling
- The weight of a click
- Designing for Keyboard

### Language & Complexity

- Words shape expectations
- WYSIWYG editor is hard

## Practice

### Foundation

- Introduction

### Basic UI Patterns

- Stepper
- Tree
- Action modal

### Data Visualization

- GitHub activity chart
- Charts

### Input & Selection

- Date picker

## Pricing

- Lifetime access, one-time payment: $145 USD.
- Regional (purchasing power parity) discounts of 30-40% are applied automatically based on the visitor's country.
- Team licences with 5-25% volume discounts: https://invisibledetails.com/teams

## FAQ

### Course

**Is this course for designers or engineers?**

Both. If you work on a product and care how it feels to use, it's for you.

**What’s the format of the course?**

The course is divided into two parts: Notes and Practice.

Notes explain the principles behind great interface design. Practice breaks down real UI components step by step, covering the decisions, trade-offs and invisible details behind each one.

**Do you provide a certificate of completion?**

Yes! Complete at least 90% of the course to unlock a personalized PDF certificate with a unique verification link.

**Will this course stay up to date?**

The project will gradually grow. All updates, improvements and added notes will be listed in the changelog, so you will know right away what is new if you haven't checked recently.

**Does the course work on mobile?**

Yes, the lessons read fine on any screen. A few demos are interactive and better viewed on desktop.

### Purchasing

**Do I need to pay for future updates?**

No. I see Invisible Details as an evolving resource, so every future update is included with your purchase.

**Can I purchase multiple licenses, for my team or group?**

Yes, you can purchase multiple licenses through the Team Checkout page. You'll get a 5-25% discount depending on the number of licenses.

**Can I get an invoice?**

Yes! After purchasing you’ll get an email with a link to generate a customized invoice.

**Do you support Purchasing Power Parity (PPP)?**

Yes. The price above is already adjusted for your region.

**Do you offer a student discount?**

Yes. Write to support@invisibledetails.com from your university email or attach anything that proves you're a student and I'll send you a personal discount code.

**Can I get a refund?**

Sure. If the course isn't for you, write to support@invisibledetails.com within 30 days of purchase and I'll return the full amount. No explanations needed.

### Help

**Can’t find the answer you’re looking for?**

Reach me through email support@invisibledetails.com or Twitter.

## Links

- [Homepage](https://invisibledetails.com)
- [Team licences](https://invisibledetails.com/teams)
- [Sign in](https://invisibledetails.com/login)
- [llms.txt](https://invisibledetails.com/llms.txt)