WebExpo Conference Talk #1 – Data Visualization

As someone who is very interested in visual design, data visualization and interdisciplinary topics, mixing design and science or values and aesthetics, I was really curious about Nadieh Bremers talk „Creating an Effective & Beautiful Data Visualisation from Scratch”. I wasn’t sure what to expect, since I have found that „beautiful data visualization“ often just means clear and structured, but I was more that positively surprised to see how much artistic creativity she was able to incorporate into her visualizations while still maintaining the data to communicate. What I was also surprised by and really broadened my view on the topic was her approach and angle to how she creates her visualizations. I had never heard of the tool she uses (coding it in D3.js) and thought it was so cool to create truly interactive pieces with the actual data in the background instead of using visual tools like Illustrator, which I was more used to when it comes to creatively visualizing data.

What I also thought was a great starting point was her emphasis on storytelling through data. Rather than beginning with tools or templates, she encouraged designers to start with the narrative: what is the data trying to say? This approach really aligns with interaction design principles, where the goal is not just functionality but clarity, emotion, and user connection. Sketching ideas before coding is sort of like prototyping in UX or any other visually creative field, reminding us that visual thinking is critical to problem solving. I really enjoyed that she considered aesthetic and emotional engagement. I feel like many visualizations aim for neutrality or objectivity, but in her case the work also aims to be expressive, and fun. She challenged the idea that beauty is just decoration. Instead, she argued that beauty and clarity are not mutually exclusive, and that well-designed visuals can help users stay curious, linger longer, and feel more connected to the data. This view aligns with interaction design’s attention to emotional and engaging user experiences and human centered design.

As mentioned her use of D3.js was also very interesting for me. By building a data visualization from scratch in a live coding session, she nicely demonstrated what a workflow can look like, which I found really helpful. What made this talk especially valuable was watching her iterative process. Trying something to see what happens, then continuing from there, changing things along the way and making mistakes. Her process reminded me of the iterative prototyping cycles in interaction design: test, tweak, refine. Even a small change in data structure or layout can significantly shift the meaning of a visualization. It was a really eyeopening creative process and a reminder that you don’t need a perfect or exact vision to start and then go through with, but rather develop an idea of what works along the way. This process also showed me how D3 (and coding in general) can empower designers to go beyond their visual tools and create more immersive and interactive experiences while still maintaining the aesthetics.