His expertise is in attributing ancient liturgical books and Russian metal art from the 14th to 20th centuries.

He earned his PhD in 1994 from MVHPU S.G. Stroganov, specialty: state code 17.00.05 - arts, crafts, and architecture, and became Doctor of Science (D.Sc.)

in 2008: MGHPU S.G. Stroganov (specialty: state code 17.00.04 - fine, decorative and applied arts and architecture).

Igoshev has taught and participated in the creation of training programs for art restorers in several educational institutions: Valeriy Igoshev's research areas are the restoration and reconstruction of ancient art, historical objects, icons, church utensils, and temple decorations.

[citation needed] He has participated in various research projects and scientific expeditions:[citation needed] Igoshev has written over 200 articles about precious collections and participant in the collective monographs and catalogues.