Psychological concept illustrations

Set of 4 concept psychological illustrations about self help, empathy, loneliness, psychotherapy . Vector black&white illustrations. To work with the files of the set, use vector editors such as Adobe illustrator, Corel Draw and etc. . The files are not used to be modified in raster editors such as Photoshop . --- Zip file contains: - vector EPS10 file; - vector AI CS5 file; - JPEG file 6006x4416 px, 300 dpi .