* [http://www.nutzrad.de/index.php?seite=kat cargo bikes overview], a "longjohn"-type cargo bike
** has 2 wheels (1st column) and the load is placed in front of the rider, as low as possible, with the front wheel further forward
** all types of load ("loads", "loads and kids", "kids", "advertisement", "selling", etc.) are known to have been successfully transported with longjohns (therefore there is one longjohn icon in each not-empty cell of the 1st column)
* longjohns are probably the most common type of cargo bikes
** they are described and discussed at the following pages: [https://en.wikipedia.org/wiki/Freight_bicycle#Long_John_bicycle en.wikipedia], [https://de.wikipedia.org/wiki/Long_John de.wikipedia], [http://www.longjohn.org/ longjohn.org]