Ryan Jacobson
Books
Marvelous medical inventions
2013
ISBN 9781467716840
William Penn: Founder of Pennsylvania
2006
ISBN 9780736865012
Eleanor Roosevelt
2005
ISBN 9780736866071
William Penn
2006
ISBN 9780736896658
Ghostly Tales Of Wisconsin
2009
ISBN 9781591932369
How toilets work
2011
ISBN 9781609732233
Step-by-step experiments with light and vision
2012
ISBN 9781609735883
Exciting Entertainment Inventions
2013
ISBN 9781512460094
Get a job at a business
2014
ISBN 9781467747554
Get a job making stuff to sell
2015
ISBN 9781467738378