Writing a book is....

1 step forward, 12 steps back, retrace steps, get a call from book editor requesting all photographs be re-shot, cry, throw things, sigh heavily, call it a day, stay up nights mentally designing, loose 3 weeks learning new camera operation, re-shoot re-designed projects, get a call from co-author saying ISO set wrong and all photographs must be re-shot, cry, throw things, sigh heavily, call it a day...

 something like that...