The History of Sweets

Paul Chrystal, M. Ranganathan • 2022

The History of the World in 100 Pandemics, Plagues and Epidemics

Paul Chrystal, V.I. Byvshev • 2021

The History of the World in 100 Pandemics, Plagues and Epidemics

Paul Chrystal, V.I. Byvshev • 2021

The History of Sweets

Paul Chrystal, M. Ranganathan • 2021

A Historical Guide to Roman York

Daniela Ugarte, Leda M. Pérez, Paul Chrystal, L.M. Pérez L • 2021

A Historical Guide to Roman York

Daniela Ugarte, Leda M. Pérez, Paul Chrystal, L.M. Pérez L • 2021

Emperors of Rome: the Monsters: from Tiberius to Theodora, AD 14–548 (history of Terror)

B.E. Wood, R. White, Paul Chrystal, H. Cuervo • 2020

Emperors of Rome: the Monsters: from Tiberius to Theodora, AD 14–548 (history of Terror)

B.E. Wood, R. White, Paul Chrystal, H. Cuervo • 2019