Keeping track of your collection is an important task for your collection. As the collection grows, you should keep track of the pieces you purchase. The information recorded can be used for future references for many reasons. Sometimes it's important information to know and sometimes it's just fun to remember. Also tracking what you have helps to fulfil a "set" or series within your collection. For instance it's good to know if you need one or two specific planes to complete a set of a particular type or style. Although this workbook is written for your Stanley collection, you can also use the extra spaces for other pieces in your collection. There are empty inventory pages for other brand planes.