This depends what you want to know. I can recommend two books, which look at consulting from two perspectives:Perspective 1: HOW TO BE A CONSULTANT - Block's 'Flawless Consulting' is a good start. It's a collection of essays about the industry, approaches and challenges. Kubr is also good, but perhaps not as accessible a read as Block.Perspective 2: WHAT YOU NEED TO KNOW AS A CONSULTANT - Harding and Long's 'MBA Management Models' is worth a look. It sets out around fifty of the most influential structured analysis models in simple terms, and shows in many cases how they can be used together to broaden an analysis. Of course, if you join a firm, you'll get training about this stuff on the job, but it's a useful reference to have to hand. Trust me, I know!Hope this helps. Of course, my list is not exhaustive and there are any number of good books out there.Good luck.B