50 Ideas You Really Need to Know is a 18-book series with 18 primary works first released in 2007 with contributions by Joanne Baker, Ben Dupré, Tony Crilly, Adrian Furnham, Edmund Conway, Peter Stanford, Ian Crofton, John Sutherland, and Robin Cross.
2009 • 4 Readers • 208 pages
2007 • 3 Readers
2007 • 4 Readers • 316 pages
2009 • 1 Reader • 208 pages • 4
2010 • 1 Reader
2007 • 1 Reader • 3
2010 • 1 Reader • 207 pages
2010 • 1 Reader • 4
2007 • 1 Reader • 215 pages • 5
2009 • 1 Reader • 208 pages
2007 • 1 Reader • 156 pages
2009 • 1 Reader • 216 pages
2010 • 1 Reader
2011 • 1 Reader
2010 • 1 Reader • 4
50 Ideas You Really Need to Know
2010 • 2 Readers • 208 pages
2007 • 1 Reader • 208 pages • 3
2008 • 1 Reader