▁the ▁son ▁of ▁a ▁sugar - mill ▁worker ▁and ▁a ▁teacher . ▁ ▁Ra úl ▁Martínez ▁studied ▁at ▁the ▁Academy ▁of ▁Arts ▁of ▁San ▁Ale j andro , ▁and ▁later ▁at ▁the ▁Institute ▁of ▁Design ▁in ▁Chicago , ▁Illinois . ▁During ▁the ▁ 1 9 5 0 s ▁he ▁worked ▁in ▁the ▁advert ising ▁ag ency ▁O TP LA . ▁Was ▁the ▁art istic ▁director ▁of ▁the ▁cultural ▁magazine ▁L unes ▁de ▁Revol ución . ▁Sp or ad ically ▁designed ▁film ▁post ers ▁for ▁I CA IC . ▁During ▁the ▁ 1 9 6 0 s ▁was ▁a ▁professor ▁of ▁design ▁in ▁the ▁School ▁of ▁Architecture ▁of ▁the ▁University ▁of ▁Hav ana . ▁His ▁work ▁has ▁participated ▁in ▁collect ive ▁and ▁personal ▁expos itions ▁and ▁the ▁bien n ial s ▁of ▁Mexico ; ▁São ▁Paulo , ▁Brazil ; ▁Ven ice , ▁Italy ▁and ▁in ▁the ▁Sal on ▁de ▁Mai , ▁Paris , ▁France . ▁His ▁work ▁has ▁been ▁reward ed ▁on ▁repeated ▁occasions . ▁He ▁obtained ▁the ▁Silver ▁Medal , ▁Cub an ▁P ain ting ▁Ex hib ition , ▁ 1 9 6 0 ; ▁Medal ▁of ▁Bron ze , ▁International ▁Ex position ▁of ▁the ▁Art ▁of ▁the ▁Book ▁( W ENT ), ▁Leipzig , ▁Germany , ▁ 1 9 6 5 ▁and ▁the ▁National ▁Prize ▁of ▁Pl astic ▁Arts , ▁National ▁Union ▁of ▁Writ ers ▁and ▁Art ists ▁of ▁Cuba ▁( UN E AC ), ▁ 1 9 9 5 . ▁The ▁Council ▁of ▁State ▁of ▁the ▁Republic ▁of ▁Cuba ▁offered ▁him