Writer's block happens to the best of us. Even when some new ideas come into our minds, we still aren't that convinced that the ideas are good enough, or it could be that we don't know how to use these new ideas. In case you feel like you're in this position, here are some books that may be of service:
On Writing Well: The Classic Guide to Writing Nonfiction, by William Zinsser: No matter what type of nonfiction you're looking to write--memoir, family history, autobiography, articles, etc.--this book is a great resource and can provide some tips to help you get started with outlining some new ideas.
The Everything Creative Writing Book, by Carol Whiteley: Not only does this book provide tips to overcome writer's block, it provides helpful tips for those who are writing a short story, article, poem, novel, etc. It also provides some writing samples, including advice on how to get published.
On Writing: A Memoir of the Craft, by Stephen King: Although it mostly speaks of King's emergence throughout his writing career, this book also talks about the most important tools that any writer needs in order to master the writing craft.
Writer With a Day Job, by Aine Greaney: This book provides tutorials on how the writer can plan new ideas, set writing schedules and goals, how to make the most out of his or her writing time, etc., all the while holding down a full-time job.