YOU WOULDN’T be blamed for not being overly familiar with the name Pentti Sammallahti. Although he has been described as one of Finland’s most noteworthy and prolific documentary photographers, and has worked to great acclaim for more than 40 years, he’s hardly a household name in the UK. He exhibits frequently, in this country and in others, but interviews with him are near-impossible to find, and information about the man behind the photos is thin on the ground. He has released books and monographs of his various photographic explorations, but only now do we get a more substantial retrospective in ink-and-paper form. The book, Here, Far Away, is a retrospective, and it is, befittingly, a thick and beautiful tome with more than 300 photographs that provide a testament to a…