If you're into corporate and personal improvement, a good book to read is Fish! Sticks by Stephen Lundin (and others). This is a follow-up book to Fish!, and it deals with how to make change "stick" after the initial enthusiam wears off. Very short (122 pages), but good impact.
The original book (Fish!) drew inspiration from the Pike Street Market in Seattle and the fish vendors who truly enjoy their work and deliver a unique customer experience. Fish! Sticks is not true, but it's a great parable of how to internalize your vision and your change so that it becomes part of you and just not something you do.