"The Mouse Brain in Stereotaxic Coordinates" is the most widely used and cited atlas of the mouse brain in print. It provides researchers and students with both accurate stereotaxic coordinates for laboratory use, and detailed delineations and indexing of structures for reference. The Compact 3rd edition is both a major revision and an expansion of previous compact editions. The 100 high resolution digital photographs of the coronal plane of section from the third full edition now complement the coronal drawings. The photographs of the sections and the intermediate sections are also provided on the accompanying CD. In addition, the compact version has a large introduction on stereotaxic surgery and the use of the atlas in the lab, as well as a number of panoramic simplified diagrams for student instruction.The Compact 3rd edition is in 8.5 x 11 format and is spiral bound suitable for positioning next to microscopes and cryotomes. It includes delineations of 100 coronal diagrams, as fully revised for the 3rd edition. It features 100 coronal photographic plates produced from directly scanned very high resolution images of the biological sections (done at the Allen Institute).It contains a Beginner's guide with 25 pages on how to do stereotaxic surgery, how to use the atlas, including how to match experimental sections against the atlas plates (e.g. what features of the brain change gradually and can be used as guides to location).It features 3 sagittal, 5 coronal and 2 horizontal simplified overview diagrams for students. It provides surface views of the brain with labels over the major structures. It uses the best ontology tree (nomenclature based on the development of the brain) so far constructed with universal application across mammals. It includes a CD providing electronic versions of all diagrams and photographs in different resolutions for downloads.