First off is this extraordinary new book by Juliana Coles. She is a phenomenal artist as well as an exceptional teacher, and this book encompasses both her visual journaling as well as prompts to start you on your own journey. This book truly is page after page of inspiration and should be a part of every artist's library. Her book, Ghost Pirate can be ordered on Amazon as well. Juliana also offers how to journaling booklets on her ETSY site as well as offering a variety of online classes.
I am a huge fan of Gina Armfield's No Excuses Journaling technique. Gina has a series of online workshops as well as an inspiring book on the subject of transforming a desk calendar into a place full of daily art experiments, photos and quotes. Some of my work as well as details about my own NME process is in this book. I can not sing the praises of this process enough! I have been at it for 4 years now and while I ebb and flow with it, I am always astounded and grateful for all that I have done by the end of the year. This is a fantastic project to start right now!