His works reflect that of a realist. Comenius was the first person to put pictures in text. He felt it was necessary for children to see what the world looks like with the help of pictures. Orbis Pictus was written in 1638 and was the first children's picture book. The book later led to audio-visual techniques in the classroom. After Sweden saw his work, they asked him to organize and manage their schools. In 1642, he prepared school texts for six years. Comenius wrote a book called Didactica Magna. This book described a very different educational system.
He believed that schools should be organized in stages from easy to hardest. He also thought teachers should be kinder to the children instead of harsh. Language was also important to him. He mostly taught Latin but he also attempted to write in other languages. Comenius felt that teaching in different languages was beneficial to every child wanting to learn.

During the 17th century, Comenius also stood up for women. It was believed by many that women were uncapable of learning and Comenius stated that was "a denial of the divine will and a waste of their proven capacity to learn."

Before he died in 1670, he had devised seven schools, one for each stage of life. The first stage was "the school of becoming" and the last stage was "the school of death."

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