I want to know the basics...which birds use birdhouses, & what the basic dimensions for my targeted species are. What nesting materials do thew use...etc.. This book does a great job of doing that. I do NOT want my birdhouses to be clones of some boring plan out of a book. Get creative! Use this basic info & create your own unique backyard!Sorry previous writer was so disapointed, but he's right in one respect......if you want assorted detailed building plans...go elsewhere.