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Case Study —

Redesigning CommonLit: Building a Scalable Design System

commonlit.org
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CommonLit is an ELA curriculum and assessment tool for grades 3-12. This case study details our work to enhance usability for educators and administrators.
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Summary

Challenge

Process

Outcome

Team

In 2024, CommonLit brought me on board to lead the design and implementation of their first comprehensive Design System and drive the user experience refresh of focused areas within their core product, utilizing the newly defined Design System as its foundation.

What is CommonLit?

CommonLit is a web app that provides English Language Arts (ELA) curriculum, test preparation materials, benchmark assessments for educators and school administrators. It is designed to supplement classroom instruction, facilitate an increase in literacy rates, and support educators with on-demand professional development.

Scope of Work

My collaboration with the CommonLit Product team encompassed a comprehensive design evolution, including a rebrand and a refresh of the marketing website. However, the focus of this case study is solely on my direct responsibility for designing and implementing a new design system within the core CommonLit platform. The responsibilities relevant to this focus include:

  1. (Obvs) Designing and implementing a new design system.
  2. Addressing and resolving complex design patterns.
  3. Revamping key user interfaces, including the navigation, architecture, dashboard and text library experiences.
  4. Integrating and refining a new brand identity.
  5. Conducting strategic future-thinking with stakeholders for post-launch product development and easy wins.
  6. Working directly with the engineering team to align the design system with Tailwind CSS semantics for streamlined implementation.

Target Audience

The primary audience for CommonLit is educators in U.S. public schools teaching English Language Arts (ELA) to students in grades 3-12, with a particular emphasis on grades 9-12. The secondary audience includes school administrators seeking a high-level overview of student literacy rates, and ways to provide their teams with professional developement.

Contribution

I spearheaded the design refresh of CommonLit, combining my product and brand design skills to create a more intuitive and visually cohesive experience. I refined a new brand identity, developed a new design system, tackled complex design challenges, and revitalized key user experiences.

A crucial part of my role was working hand-in-hand with the engineering team to align the design system with Tailwind semantics, ensuring a smooth and efficient build process. I also refined the brand's visual language, expanding its application within the platform, and contributed to the overall product strategy. Essentially, I made sure CommonLit was not only user-friendly and aesthetically pleasing, but also flexible and evergreen.

TL;DR: Outcome

We successfully launched the CommonLit redesign in October 2024, resulting in a more intuitive and user-friendly experience for educators and administrators. Our efforts successfully transformed CommonLit into a more accessible and efficient tool, evidenced by positive user feedback and high adoption rates.

To learn all about how we made that happen, check out the rest of the case study! 

Reconciling Legacy Design Debt

CommonLit, initially developed by passionate educators, faced significant design and scalability challenges. While the educational content was of high quality, the user interface and overall experience lacked consistency and cohesion. The absence of a centralized design system led to a fragmented user journey, with each new feature requiring isolated design and engineering efforts.

A legacy screen of commonlit showing the old version of text library

[Fig 1.1]

The previous state of the CommonLit Text Library experience, before the redesign.


This resulted in substantial design debt and hindered the teams ability to scale effectively. Moreover, when I joined the team, the business was in the middle of a rebranding effort. The extra layer of complexity required a bit of juggling because we had to strategize how to integrate and expand on a partially complete visual identity as we built the new design system. The age old "build the plane as we fly."

Constraints and Limitations

The redesign of the CommonLit platform needed to be mindful of several key constraints which shaped the project's scope and approach. Limitations included:

  1. Limited Scope: The focus was restricted to the dashboard experience, with a focus on the Text Library.
  2. CMS Inflexibility: The absence of a robust CMS limited the flexibility of the Text Library's content structure.
  3. Legacy Technical Decisions: The engineering team operated under outdated technical constraints, necessitating a careful re-evaluation of past decisions.
  4. Tight Timeline: The project adhered to a strict agile handoff schedule, with a July start and a mid-October launch target.

Laying the Groundwork: Design System Primitives

We kicked off by establishing the fundamental building blocks: color and typography. This involved not just picking pretty hues and fonts, but aligning with stakeholder vision and the evolving brand. After refining the brand palette, I created a flexible color system. For typography, we introduced new editorial typefaces while ensuring scalability across devices by meticulously mapping styles to Tailwind CSS. This close collaboration with engineering from the start was key to a smooth build.

A side-by-side of the before and after of the CommonLit brand color palette

[Fig 1.2]

A side-by-side of the previous color palette and the extended color palette from the CommonLit Design System.

A screenshot of the typographic style guide in the CommonLit design system

[Fig 1.3]

A screenshot of the extensive documentation of Typography in the CommonLit Design System.

Ensuring Accessibility from the Start

From the outset, ensuring the design system met accessibility standards was paramount. While accessibility was a continuous consideration, we rigorously validated color contrast and typography size. By systematically testing color pairings and establishing clear guidelines, we ensured the foundation of our design would be usable by a wide range of individuals.

A screenshot showing details of the CommonLit Design System accessibility study

[Fig 1.4]

A screenshot of one portion of the accessibility study for color contrast and type size in the CommonLit Design System.

A screenshot of the surface and elevation study for the CommonLit Design System

[Fig 1.5]

A screenshot of study for surface color and elevations in light and dark mode from the CommonLit Design System.

Future Proofing with Variables

Anticipating the need for user customization and accessibility, I proactively built light and dark themes into the design system using Figma variables. This forward-thinking approach provides a robust framework for future enhancements, ensuring the platform can adapt to diverse user preferences.

A screenshot of Figma variables modal with light and dark mode variables defined

[Fig 1.6]

A screenshot of the Figma Variables overlay examplifying Tokens and Modes of the CommonLit Design System.

Rethinking the Navigation

The existing horizontal dropdown navigation was clunky and inefficient. Our goal was to create a more intuitive way for teachers and administrators to navigate. I spearheaded a redesign to a persistent left-hand navigation, requiring a complete overhaul of the information architecture. This exposed all key subpages, reducing clicks and cognitive load. This structural shift was particularly beneficial for screen reader users, providing a clearer and more accessible navigation experience.

A screenshot showing the contact sheet for the updated navigation from the CommonLit Design System

[Fig 1.7]

The contact sheet of Navigation components in light and dark mode from the CommonLit Design System.

Streamlining Information Architecture

Beyond the navigation structure, we refined the underlying information architecture to improve wayfinding. We established a clear hierarchy, utilizing L1 pages with persistent navigation and L2 pages as overlays. This visual cue helped users understand their context within the platform, reducing confusion and improving overall orientation.

Two screens side by side showing the search and filter experience within the Text Library of the CommonLit platform

[Fig 1.8]

Examples of modals and page overlays in the Text Library experience.

Enhancing the Text Library

The Text Library suffered from various usability issues. Our goal was to create a more seamless and visually appealing experience for accessing and reading content. Leveraging the established typography system and implementing constraints for image handling, we addressed issues like cropping and truncation. This led to a more consistent and user-friendly core experience.

A side by side of the before and after states of the CommonLit text library

[Fig 1.9]

A side-by-side comparison of the before and after state of the CommonLit Text Library experience.

Building Components and Documenting for Scale

Throughout the entire process, every design decision, from color palettes to navigation patterns and Text Library improvements, was integrated into our evolving design system. We meticulously documented primitives and components, and patterns ensuring clarity for both the engineering team during implementation and for future design iterations. This focus on documentation was crucial for long-term scalability and maintainability.

A screenshot of a contact sheet showing the button component and variants from the CommonLit Design System

[Fig 1.10]

A screenshot of the contact sheet for the Button component describing variables and modes from the CommonLit Design System.

A screenshot showing documentation of the button component from the CommonLit Design System

[Fig 1.11]

A screenshot overview of the documentation of the Button component in the CommonLit Design System.

A User-Centered Transformation

Following three months of intensive design and development, CommonLit 2.0 was successfully launched in October 2024. To ensure a smooth transition for users, we implemented a comprehensive onboarding experience, showcasing the redesigned dashboard, navigation, and updated brand identity. This onboarding process, featuring a refreshed character design and a new voice and tone, was met with overwhelmingly positive feedback from teachers.

A side-by-side of the Text Library experience for CommonLit in 3 sizes: Desktop, Tablet and Mobile

[Fig 1.12]

Examples of device scaling including desktop, tablet and mobile screens from the CommonLit Design System and redesign.

User Adoption and Impact

Within weeks of launch, over 89% (over 20,000 users) completing the onboarding tour. Another key metric was an almost empty support inbox, demonstrating the update was intuitive and user-friendly. This high adoption rate underscores the effectiveness of the redesigned dashboard and navigation, which were central to the project's objectives.

A screenshot of a slack message that describes user feedback praising the redesign

[Fig 1.13]

A screenshot from post-launch feedback from a member of the Customer Success team.

Positive User Feedback

Just kidding, the support inbox wasn't completely empty. Actually, the messages we received came from teachers reporting significant improvements in their ability to navigate the platform and access essential resources. One teacher, in particular, noted the platform's seamless integration with Google Classroom and the effectiveness of its standards-based assessments, attributing improved student scores to CommonLit's resources. The teacher also highlighted the platform's user-friendly tutorial and the heartfelt message of appreciation for educators, emphasizing the platform's positive impact on their teaching experience.

A screenshot of a slack message that includes two images of user feedback praising the redesign

[Fig 1.14]

A screenshot from post-launch feedback from another member of the Customer Success team.

Overall Project Success

These qualitative and quantitative results demonstrate the project's success in addressing the identified challenges and constraints. By implementing a robust design system, refining the user interface, and enhancing the overall user experience, we transformed CommonLit into a more accessible, efficient, and user-friendly platform for educators and administrators.

Project Team (A-Z)

Amanda Page

Senior Product Manager

Brooks Johnson

Senior Software Engineer

Eliza Hogan

VP of Engineering

Jenni Lopez Garay

Lead Product Designer

Lydia Gregory

Software Engineer

Marcy Carbajal

Director of Design, VP of CX

Micah Rivera

Principal Product Designer

Rachael Haeseker

UX Designer

Sonja Peterson

Senior Software Engineer

Star Burruto

Senior Product Manager

Kind Words from Colleagues

Micah is an exceptional principal product designer and genuine player-coach.

I had the privilege of collaborating with Micah at CommonLit, where they drove the end-to-end product design for our new design system and component library. Micah was attentive to detail, speedy, and thorough in their work. The quality of their work was stellar—everything from crafting components, to writing annotations, to creating informative handoff videos and collaborating with engineers.

In addition to being a great designer, Micah is also a great team player. Micah took the time to kindly coach and integrate our more junior team members, who appreciated all that they learned from Micah directly and indirectly. Micah also stepped in to help lead our team while I was away for an extended medical leave, and we couldn’t have launched our design system or redesign without them.

I highly recommend Micah for any expert level product design roles or engagements.

Marcy, Director of Design, VP of CX

I worked with Micah at CommonLit where they were brought on as a Principal Product Designer and quickly became an essential part of the design team. Bringing on Micah was easily the best decision we made.

They are a rare gem as a designer—laser-focused, quick, effective, and an overall wonderful human being. They created and implemented the design system, introduced and refined new branding, overhauled both the product and the marketing site, all while managing stakeholder expectations and coaching our junior teammates.

We collaborated on a daily basis as a design team and worked in lock-step with our engineering and product management partners. We received resounding positive feedback about Micah’s inputs and expertise. Simply put, they were a joy to work with. I would recommend Micah to anyone looking to add a brilliant designer to their team.

Jenni, Lead Product Designer