I found it especially challenging to create a logo for a client whom I have never met. With the COVID-19 epidemiological situation around, I didn't get the chance to have a glimpse of his true personality, which would have been essential to set the tone of the whole branding. So in the first few rounds, my assumptions took me in the wrong direction. Until I finally got a hint of the feel he was looking for. From that point onward, I had a clear vision of the required subtlety and elegance of the final outcome. Never received so many compliments for a commission before. It was made clear to me several times that my client is highly proud of his logo and business card. :-)