This Penguin selection of Walter Benjamin's work is a rip-off. It has the same title as an earlier Verso selection, but the Verso selection was far bigger and had an illuminating and generous essay by Susan Sontag. The Penguin selection has fewer essays and a somewhat less helpful introduction by Amit Chaudhuri, which is quite interesting about Amit Chaudhuri but not so useful about Benjamin. If you really want to experience Benjamin's work and have time and money, you need the four-volume Belknap/Harvard Selected Writings (or else learn German and get his complete works from Amazon.de for slightly under £150.)
The Verso selection is far better value for money, if you can find it. The Penguin selection is definitely bad value. The only selection of Benjamin's work that everyone needs is Illuminations, although One-Way Street itself is a wonderful work - but you're better off getting the Verso version.
This book makes for a great introduction to the work of one of the most significant and influential cultural critics of the 20th century. Among the ten essays included here are the ever-relevant "On The Critique of Violence", the sharp urban observations of the eponymous "One-way Street", and the seminal "Work of Art in the Age of Mechanical Reproduction."
It's a good place to start for students trying to get to grips with Benjamin, but also makes an ideal (if somewhat heavier) companion piece to George Orwell's Essays (Penguin Modern Classics)