Bergós establishes five periods in Gaudí's productions: preliminary period, mudéjar-morisco (Moorish/mudéjar art), emulated Gothic, naturalist and expressionist, and organic synthesis.
Bergos paraqiti pesë periudha të Guadisë: periudha e parë, mudéjar-morisco (mavritan/maur art), Gotiku, natyralist dhe ekspresionist dhe sinteza organike.