4 books in series

Time Traveller's Guides

Time Traveller's Guides is a 4-book series with 4 primary works first released in 2008 with contributions by Ian Mortimer.

The Time Traveller's Guide to Medieval England: A Handbook for Visitors to the Fourteenth Century
The Time Traveller's Guide to Elizabethan England
The Time Traveller's Guide to Restoration Britain
The Time Traveller's Guide to Regency Britain