This study aims to know the sharing student degree in the content of Biology Book for second secondary class in Republic of Iraq, and Science book for Eighth class in UAS .This study depends on the analytic, descriptive way, using the analytic style of the content for the two books - The conclusion of this study which is associated with the biology book of second secondary class in Republic of Iraq to the student share by ;- - The Learn object widen equal (0.134), it is unacceptable rate object challenged the student thought. - Paintings equal (0,285), this means that the structures structures and paintings him to use these in formation. - Activities equal (0,6) ie. , the student gets an acceptable sharing with these activities (The conclusion associate with science book for UAS) - Paintings equal (1), it means that, equals the structure and paintings of the book which share the student and urge him to think with the other unshared half. - Activities equal (2,2), it means the activities in the book do not give a completed data to deal in active way . According to the previous, some recommendations and suggestions that give the benefit according to Roomy method to analyses the biology book for the other next classes to know the sharing of student.