Can't get started? Writer's Block? Perhaps I can help...
1. Type out the text of favorite picture books, study it!
Ann Whitford Paul (suggests typing out the text of picture books, to get a feel for the story. This is immensely helpful. Typing the text of some of my favorite authors' stories (Oliver Jeffers and Jim Averbeck, plus see more here) helped get me in a picture book writing frame of mind. Short, simple, sweet. Short, simple, sweet.
2. Chart the plot from picture books you love to get your creative juices going.
I was watching this cute video of Oliver Jeffers:
Oliver Jeffers Author Film 2013 from Oliver Jeffers on Vimeo.
And him talking about the "arch of his story" beginning middle and end, struck me. I have trouble coming up with the story arc. I come up with lots of ideas, but have trouble with the middle or the end, sometimes both. So I sat down and thought of some of my fave books and roughly wrote down the theme of their story.
Example [spoiler alert!] Oliver Jeffers story The New Sweater: The Hueys, Book 1 - All Hueys are the same, one Huey decides to be different. One joins/accepts him then all join him. Then decides to be different again.
This got my creative juices flowing, hope it does yours!