AU - MUIR,DUNCAN TI - KNOWLEDGE MASTERS: OPTICAL ILLUSIONS T2 - KNOWLEDGE MASTERS SN - 1842399063 U1 - 152.148/MUI PY - 2006/// CY - LONDON PB - ALLIGATOR BOOKS LIMITED KW - OPTICAL ILLUSIONS KW - HOLOGRAM KW - FILM SPECIAL EFFECTS KW - MAGIC TRICKS KW - VIRTUAL REALITY ER -