1
by Woolf, Bob.
Published 1990
2
3
4
by Pease, Allan
Published 2000
5
6
by Miller, Robert B.
Published 2004
7
by Hogan, Kevin
Published 2003
8
by French, Astrid
Published 2003
9
by Cohen, Steve
Published 2005
10
11
by Erickson, Juliet
Published 2005
12
by Snair, Scott
Published 2009
13
by Kawasaki, Guy
Published 2011
14
by Hogan, Kevin
Published 2006
15
16
17
by Cohen, Allan R.
Published 2012
18
by Brader, Ted
Published 2006
19
20
by Cialdini, Robert B.
Published 2007