The summary column shows ratings for BOOOKS/PRICES (P) - BONUSES (B) - SERVICE (S), and are scored out of 10.

Just one important note. When you visit any of the reviewed Bookmakers, have a look on the first page for the flag of your country and click on it. This will set the Bookmaker to your local currency etc. If there is no flag, look for your local currency instead, and click that. Most of the Bookmakers reviewed are UK sites, so you won't have to do this very often if you live in the UK.