《智囊》共分十部二十八类，收入了古人智术、计谋的故事近两千则，其涵盖范围极为广泛，涉及了明代以往的很多史籍、文集以及稗史、笔记、传说和演义等。从内容类别上看，上自经国大略，下至市井小计，旁及妇幼之智，无不在其爬梳搜罗之列。其中很多故事不仅妙趣横生，而且寓意深刻。《智囊》不仅分部别类，而且在各部类之前和一些故事之后都有冯氏自己的按语，从中可见他的思想。( Brainpower is divided into ten parts and 28 categories, including about two thousand of trickery and scheme stories of the ancients, covering widely and concerning many historical records, collected works, unofficial history, notes, legends and historical novels of Ming Dynasty. According to the content classification, it contains ambitious strategy for country management, folk trick and wisdom of women and children and it sorts out and collects them all. Many stories in it are not only full of wit and wisdom, but also pregnant with meaning. Brainpower is not only divided into parts and categories, but also has its own notes written by Feng Menglong before and after some stories in each part and category to reveal his thought. )