Ipython Notebook: how to run multiple cells?

Question

My notebook gets a bit of long, I divide it into several parts. Sometimes, I just want to run a certain part of it, i.e consecutive cells

For example, <

Answer 1

UPDATE as per Jan 2018: You can select and run multiple cells in command mode using the below shortcuts:

1.shift+K (select the cells in an upward direction) and then Ctrl+Enter

2.shift+J (select the cells in a downward direction) and then Ctrl+Enter