"hollow muscle" and "solid muscle" ... NO SUCH THING !!!! I`ll PM you tonight. If you are looking for a good basic book about building muscle get..

"Arnold Swartzenegger`s Enclyclopedia of Bodybuilding" It is about 500-600 pages with lots of pics and comes in softcover for about $25/ Well worth it !!! A must have for those looking for results in the gym !!!