Fascinating and incisive . . . spell-binding. -- John Carey

Rundell captures John Donne's unique vision in all its power, eloquence and strangeness . . . she is the ideal person to evangelise him for our age. -- Lara Feigel - Guardian

A wonderful, joyous piece of work . . . with fierce, interrogative intelligence. it is fantastic to have this most elusive and mysterious of men brought out into the light, for all to see. I just loved it. -- Maggie O'Farrell

Blazingly intelligent and witty . . . the biographer Donne has been waiting for - Telegraph

Frankly brilliant . . . On reading this extraordinary biography you are left concluding that [Rundell's] talent, like that of her hero's, must somehow be super-infinite. - Sunday Times

Katherine Rundell's brave and detailed new biography of John Donne is just the book we need: the life, family, historical background, religious questions and - best of all - the poetry, are imaginatively researched and subtly treated. The result is worthy of its subject - every page sparkles. -- Claire Tomalin

Both scholarly and huge fun. -- Marina Hyde

Crackling with gusto and sympathetic intelligence, Super-infinite places John Donne fairly and squarely in his own times, while making those times feel contiguous with our own. We meet all his closely-entangled selves - wit, poet, lover, husband, soldier, priest - and all of them are cleverly drawn, creating a portrait in which closely-observed details are ingeniously set against a background of long perspectives. -- Andrew Motion

What a Super-Infinite delight is this, this is the rich, textured and excellent biography that I have always wanted to read about Donne - it brings the poet, his poetry, his many lives and his turbulent Elizabethan and Stuarts times vividly to life. -- Simon Sebag Montefiore

Katherine Rundell makes Donne come alive as a remarkable and extraordinary and almost boundless human being. His life was one of despair and joy, the sacred and the profane, deep love and pain, and this book is filled with such infectious passion and fascinating detail that it shines like its subject. A triumph. -- Matt Haig

'Katherine Rundell has a wonderful touch, light yet profound, which perfectly suits her extraordinary subject. The book combines delight in Donne's humanity and his intellect, even as it delves into his metaphysics. Unmissable.' -- Simon Jenkins

This book unravels that knotty, witty, passionate poet John Donne. Completely at home in the middle of this Sacred and Profane Love Machine, Katherine Rundell has produced what is in itself a paradoxical and beautifully crafted work of literature - something much greater than mere critical simple biography. -- A N Wilson

Super-Infinite is a stylish, scholarly and gripping account of Donne's ecstatically divided self, 'hurried by love' and by man's 'inborn sting': a work super-relevant to our own troubled times. -- Rose Tremain

In Rundell, Donne has an authoritative and sympathetic chronicler - Observer

What a delightful book Super-Infinite is: companionable, astute, intimate in tone and clear-eyed in judgement, it brings Donne and his milieu to glorious life. I loved it. -- Nick Laird