If you are referring to James Thomas as an author within a specific field, such as literature or academia, it is important to note that there are several individuals by that name across various disciplines. Without more context, I cannot provide a detailed profile of a specific James Thomas. However, generally speaking, an author named James Thomas could be known for compiling anthologies, writing on particular subjects, or for producing fiction or non-fiction works. Many authors named James Thomas might have contributed to literature, educational texts, or professional resources depending on their area of expertise. Please provide more detail or specify the works or field associated with James Thomas for a more focused description.