Community- and home-based daily intense cognitive rehabilitation (CR) of traumatic brain injury (TBI) clients was initiated on the basis on knowledge mentioned in Chapter 17. In the CR, statistically significant changes were demonstrated in attention and reading abilities in sixteen severe TBI clients by one-year daily CR. Improvement of memory and executive functions required more training periods as shown later. The temporary minimum scores of four neuropsychological tests required for social reentry, namely, 50 in TEA, 15 in RBMT, 80 in BADS and 40 in JART, were determined as a goal of our CR. In addition to the drill (pen and paper) method mainly using workbooks, a more advanced program for CR, particularly in clients who reached the required level, was developed together with the clients.