Illustrated Timeline of Inventions and InventorsKremena T. Spengler, Richard Morgan · First published 2011Open the Tome
Illustrated Timeline of TransportationKremena T. Spengler, Eldon Doty · First published 2011Open the Tome
Visual Timelines in HistoryKremena T. Spengler, Patricia Wooster, Mary Englar, Len Epstein · First published 2011Open the Tome
