The Ring System, a structure constructed in space when Earth was abandoned as an environmental preserve, contains a society divided by money and status. Mitsu, a sixteen-year-old lower-level window washer whose father was killed when he fell from the surface of the Ring, struggles to define his role in this stifling and segregated civilization. Unsafe living conditions and unrest among the residents ravage the lower levels, but Mitsu and his colleagues also struggle with loneliness and thwarted ambitions. In the final volume of Saturn Apartments, Mitsu must decide whether he will descend to the surface of the earth in an experimental device and attempt to change the fate of the Ring System forever. -- VIZ Media

!--StartFragment--Earth has been abandoned as a nature preserve, and the human race now occupies the Ring System, a gigantic structure that surrounds the planet. Mitsu has just started working as a window washer, a dangerous job that five years earlier led to the loss of his father. As Mitsu struggles with being the new guy—making mistakes, struggling to keep up, handling petty workplace resentments—he also discovers the simple pleasures of befriending his coworkers, enjoying time off and getting to know his absent father through the eyes of his colleagues. All of this is part of growing up in the cramped urban quarters of the Saturn Apartments.!--EndFragment-- -- VIZ Media

Far in the future, humankind has evacuated the earth in order to preserve it. Humans now reside in a gigantic structure that forms a ring around the earth, 35 kilometers up in the sky. The society of the ring is highly stratified: the higher the floor, the greater the status. Mitsu, the lowly son of a window washer, has just graduated junior high. When his father disappears and is assumed dead, Mitsu must take on his father's occupation. As he struggles with the transition to working life, Mitsu's job treats him to an outsider's view into the living-room dioramas of the Saturn Apartments. -- VIZ Media

DigiCat Publishing presents to you this special edition of "The Big Sleep" by Raymond Chandler. DigiCat Publishing considers every written word to be a legacy of humankind. Every DigiCat book has been carefully reproduced for republishing in a new modern format. The books are available in print, as well as ebooks. DigiCat hopes you will treat this work with the acknowledgment and passion it deserves as a classic of world literature.

A timeless novel about the kindness of strangers Near a little cove where a brook runs out to the sea live a girl and her grandmother. All alone with no neighbors at all, the two lead a peaceful existence. They have a house, dine on sea kale and mussels and sand snails, and build fires from driftwood. But the grandmother is very old. When the time comes that the girl must bury the woman, she makes up a funeral song about the birds she is watching: Two crows never fly alone, and death is never, ever past. The next day the same crows seem to beckon her, and so the Crow-Girl begins her journey, one in which she will meet people both warm and cold, hurt and hurtful. And the Crow-Girl, before she knows it, has the makings before her of a new family . . . This lyrical story, with its characters' moments of darkness always overcome through incredible humanity, introduces a strong new voice for American readers.

Many students have trouble the first time they take a mathematics course in which proofs play a significant role. This new edition of Velleman's successful text will prepare students to make the transition from solving problems to proving theorems by teaching them the techniques needed to read and write proofs. The book begins with the basic concepts of logic and set theory, to familiarize students with the language of mathematics and how it is interpreted. These concepts are used as the basis for a step-by-step breakdown of the most important techniques used in constructing proofs. The author shows how complex proofs are built up from these smaller steps, using detailed 'scratch work' sections to expose the machinery of proofs about the natural numbers, relations, functions, and infinite sets. To give students the opportunity to construct their own proofs, this new edition contains over 200 new exercises, selected solutions, and an introduction to Proof Designer software. No background beyond standard high school mathematics is assumed. This book will be useful to anyone interested in logic and proofs: computer scientists, philosophers, linguists, and of course mathematicians.