The User Experience Team of One

Was on my shelf for quite a long time, a very good book for anyone having to do all the UX work in a company, be it a big structure or a startup. This book does a very good job at giving you some tools you can use to start doing a great job and some basis on which you can evolve later. Especially useful for people in startups where you have to do a lot of things in a short span of time. And really important for anyone starting into the UX field.