In A History of the World in 47 Borders, Jonn Elledge takes an ostensibly dry subject – how maps and boundaries have shaped our world – and makes from it a diverting and informative read. It is light and conversational in tone, covering topics that range from the clearly important to the niche, showing Elledge’s eye for an entertaining story and an ability to pick up political hot potatoes without burning his fingers.

Our home planet orbits the medium-size star we call the Sun. There are unfathomably many more stars out there. We accepted that these are also suns a little while back, cosmically speaking, or a few hundred of our human years ago. Ever since, in imagination, we have supplied other stars with planets, and planets with life. Science, so far, has lagged behind fiction. That may be about to change.

Artist and writer, Heather McCalden, has produced her first book-length work. The Observable Universe examines, variously, her familial history, the death of her parents to AIDS, and the subsequent loss of her maternal grandmother, Nivia, who raised her. It’s a fragmentary work, but the medium (half-memoir, half-essay) responds to the author’s own sense of disconnection and uncertainty, and at its heart is an aching feeling of loneliness and grief.

According to REM in 1987, “It’s the end of the world as we know it”. And while they sang about topical preoccupations – hurricanes, wildfires and plane crashes – they were really just varying a theme that has been around since at least St John of Patmos in the 1st century CE, and probably before.

Andrew O’Hagan’s new novel, Caledonian Road, feels very much intended to be an epic, or at the very least has designs on being a seminal work, documenting the modern (European) human condition. Character and storyline-rich, dense, and morally weighty, it looks set up to be a "state of the nation" contemporary chronicle.

"[A]n unimaginably beautiful day": this was how Kikue Shiota described the morning of the 6th of August, 1945, in Hiroshima. The day was soon to change, unimaginably, as the city was blitzed by the airburst of the first atomic bomb, nicknamed Little Boy. Shiota’s perfect weather was instantly and irrevocably translated into a brightness totally beyond the imaginative powers of the humans that brought it into being. It is a brightness that blinds, burns your clothes away, and flays the skin beneath – as Shiota discovered, when she stumbled across her brother.

During the Cold War, US presidents often claimed that the West and the Soviet Union had never fought one another directly. This observation made sense geopolitically – the likelihood of mutually assured destruction made a nuclear conflict seem unthinkable – but it wasn’t strictly true.

Consider a chimp peeling a stick which it will poke into a termite nest. It strikes us as a human gesture. Our primate cousin is fashioning a tool. Just as important, the peeled stick implies a narrative. Chimp is hungry, will deploy this neat aid to catch termites that lie beyond normal reach, and eat them.

After a first read of the blurb for Sheila Heti’s Alphabetical Diaries, you might be forgiven for assuming that this is merely a gimmick.

The book does what it says on the tin: each "chapter" begins with the next letter of the alphabet, with the content then roughly alphabetised within this, all of the sentences based on “half a million words from a decade’s worth of journals”. However, this book, written in her familiar, autobiographical style, flourishes against its constraints.

David Harsent has won a lot of prizes. From the Eric Gregory to the T. S. Eliot, he has carved out a literary career positively glittering with awards and nominations, and keeps the kind of trophy cabinet that would turn many of his contemporaries green. But if points mean prizes, prizes also mean points, and point-scoring is a dubious means to judge a poet.