Invisible writing is a technique whereby the composer writes with an empty ballpoint pen on a blank piece of paper backed by a piece of carbon paper and a bottom blank sheet. An informal experiment in which graduate students used the invisible writing technique was conducted to replicate earlier studies indicating that invisible writing is uncomfortable because it does not allow writers to pause and reread what they have written. Results of the new experiment, however, revealed that the students wrote competently and enthusiastically at first and reported that the blank paper forced them to concentrate on their work more. More formal experiments with over 100 inservice and preservice teachers as subjects were later conducted with similar results; both objective measures and self-reports indicated that invisible writing helps writers focus on the task at hand. These results suggest that invisible writing could be a promising form of classroom therapy to help writers improve the quality of their thinking as they compose. Research has revealed that less successful writers need to learn to focus their attention on writing rather than on inflexibly applying rules about the appearance of their work and rereading constantly. Invisible writing may be the best form of therapy for eliminating rereading and forcing unskilled writers to forge ahead in coherent continuous discourse. (SKC)