To photograph on the street is most of the time we can find. And usually photos arrive to us. There are so many variables and it depends on the day, but this doesn’t mean we can’t make projects.
A unique theme for a street photographer is an important challenge and a way to learn to start thinking for projects that will take you to the next level.
Photographers like Garry Winogrand showed us how to make photos with a theme can bring you to realize books. Think about his work about business men, or about the women, or the zoo. Joel Meyerowitz in 1983 published his book Wildflowers, because by looking his archive he discovered there were a lot of pictures including flowers. So he back on the street to make other photos to add for the book.
To my students I recommend them to start thinking about themes. Maybe also by looking to their archive. The work with the photos already made is important because you can discover a lot of you as a photographer, your attitude and your interests. It is an important experience with yourself and with your photos, always with the focus to let your inner voice emerge.
As an example I show here some photos I made some years ago about men shoes.