Mykhaylovskiy's research focuses on the social history of the Ruthenian lands from the late 14th to the 17th centuries, the history of Podillia, parliamentarism in Ukrainian lands from the 14th to the 17th centuries, and the historical geography of Podillia in the 14th to 16th centuries.[1]
Mykhaylovskiy has authored several monographs. These include "Elastychna spilnota. Podilska shliakhta v druhii polovyni XIV — 70-kh rokakh XVI st." (2012),[4] "Prykladom svoikh predkiv... (Vstup) // 'Prykladom svoikh predkiv...'. Istoriia parlamentaryzmu na ukrainskykh zemliakh u 1386–1648 rokakh: Polske korolivstvo ta Rich Pospolyta" (2018, co-authored and edited by Mykhaylovskiy),[4] "Bibliohrafiia parlamentaryzmu na ukrainskykh zemliakh do 1648 roku: Polske korolivstvi, Velyke kniazivstvo Lytovske, Rich Pospolyta" (2018),[4] and "European Expansion and the Contested Borderlands of Late Medieval Podillya, Ukraine" (2019).[4]
His other works include "Istoriia, mova, heohrafiia: toponimy seredniovichnoho Podillia" (2021),[4] "Nashi koroli – reges nostri. Volodari ta dynastii v istorii Ukrainy (1340–1795)" (2023),[4] "Reges nostri Władcy i dynastie w historii Ukrainy (1340–1795)" (2024),[5] and "Reges nostri. Our Kings. Monarchs and dynasties in the history of Ukraine (1340–1795)" (2024).[6]