What is the correct spelling for ATHSTITICS?

If you meant "athstitics" but actually wanted to refer to "aesthetics", here are a few suggestions. Firstly, "aesthetics" refers to the study of beauty or the appreciation of art. Secondly, you might have meant "athletics" which concerns various sports and physical activities. Lastly, "aestheticistics" could be an invented term to describe a combination of aesthetics and statistics. Hope this clarifies the correct options!