50 Ideas You Really Need to Know is a 11-book series first released in 2007 with contributions by Joanne Baker, Edmund Conway, and 5 others.
2010 • 1 Reader • 4
2009 • 4 Readers • 208 pages
2009 • 1 Reader • 208 pages
2010 • 1 Reader • 205 pages
2007 • 3 Readers
2007 • 3 Readers
2007 • 1 Reader • 215 pages • 5
2007 • 1 Reader • 3
2010 • 1 Reader
2009 • 1 Reader • 208 pages • 4
2010 • 1 Reader • 207 pages