Sean Covey and Chris McChesney

£6.99

Michael Mechanic

£8.49

Lindsay Goldwert

£7.99

Jamie Kern Lima

£9.99

(Part of Masters at Work)

Jeff Wilser

£9.49

(Part of Masters at Work)

Alex Abramovich and Tasha Blaine

£9.49

(Part of Masters at Work)

Kate Bolick

£8.49

Michelle P. King

£8.99

Margaret Heffernan

£9.99

(Part of Life Hacks Series)

Aja Frost

£7.99

(Part of Masters at Work)

Gary Rivlin

£9.49

Karim Abouelnaga

£7.74

Richard Snow

£8.49

(Part of Masters at Work)

Armand Limnander

£9.49

Susan Liautaud and Lisa Sweetingham

£9.99

Maddie Eisenhart

£7.99

(Part of Masters at Work)

Sandi Doughton

£9.49

(Part of Masters at Work)

Daniel Noah Halpern

£9.49

Thomas Mahan and Nelms

£8.10

Mohammad Mustafa

£6.49