These links are essentially the same, just choose the one that makes the most sense to you..!!!

The book report you write should be four paragraphs long. Remember to use correct conventions (margins, indent paragraphs, capitalization, punctuation etc.)

http://www.kyrene.k12.az.us/staff/gmeade/how_to_write_a_book_report.htm

http://www.ehow.com/how_11249_write-book-report.html

How to Write a Book Report (Upper Elementary School level)

http://www.infoplease.com/homework/wsbookreportelem.html

How to Write a Book Report (Middle and High School level.)

http://www.infoplease.com/homework/wsbookreporths.html

Book Reports and Summaries

http://homeworktips.about.com/od/writingabookreport/a/report.htm

Compose a Thesis Statement

http://members.tripod.com/~lklivingston/essay/thesis.html