Guillermo Estrella Tolentino is a product of the Revival period in Philippine art. Returning from Europe (where he was enrolled at the Royal Academy of Fine Arts, Rome) in 1925, he was appointed as professor at the UP School of Fine Arts where the idea also of executing a monument for national heroes struck him. The result was the UP Oblation that became the symbol of freedom at the campus. Acknowledged as his masterpiece and completed in 1933, The Bonifacio Monument in Caloocan stands as an enduring symbol of the Filipinos' cry for freedom.
Other works include the bronze figures of President Quezon at Quezon Memorial, life-size busts of Jose Rizal at UP and UE, marble statue of Ramon Magsaysay in GSIS Building; granolithics of heroic statues representing education, medicine, forestry, veterinary science, fine arts and music at UP.
He also designed the gold and bronze medals for the Ramon Magsaysay Award and did the seal of the Republic of the Philippines.