Does signing my first book deal mean a second book is guaranteed to get published too?

Does signing my first book deal mean a second book is guaranteed to get published too?

Jonny Geller (Managing Director - Curtis Brown (Books)) gives expert video advice on: I've signed a book deal what happens next?; What should I do if I don't understand the terms of my contract?; Once I've signed my contract when can I expect to recieve the money? and more...

In publishing, nothing guarantees you anything. If you sign one book deal, you don't necessarily have a career in writing. What it does do is put your foot in the door. If your book sells and they like your writing, there is more than enough chance of you being able to sign a second book deal. Most book deals now are two book deals. That cements the deal between the author and the publisher for longer.