Constructing lists in Power Query/M

The Power Query M language involves the construction of lists, which is made easier by understanding a few critical facts about them. A list is essentially an ordered sequence of values, separated by commas. Notably, list items aren't evaluated until accessed, and a list can theoretically contain an infinite number of items. 

The List.Count for such lists is undefined and attempting to define it may either cause an error or result in non-termination. Importantly, the native type of list values in the Power Query M language is the intrinsic type list. This specifies that the item type is of type 'any', hence list items can be of any type, be it primitive or structured. To initialize a list, one would use a set of curly brackets { }. Having covered these basics, it's time to delve into the practical aspect of constructing a list, which is conveniently provided in PDF for future reference.