ReadThe Portobello Bookshop Gift Guide 2025

Books etc
Fiction
Storytelling is as old as time and, whether it’s an award-winning epic novel or a page-turning blockbuster, a great book can stay with you throughout your life
Contemporary & Classic Fiction Crime & Mystery Fantasy Graphic Novels & Comics Browse more Fiction categories
Non-fiction
Be it biography, history, nature writing or any other form of true story, non-fiction writing is often loaded with just as much suspense and character as the most exciting novel
Essays, Memoir & Biography Nature & Travel History & Archaeology Science & Technology Browse more Non-fiction categories
Children’s, Teenage & Educational
These stories for children and young adults will pique imaginations and inspire young readers
Children's Fiction Children's Non-Fiction Board Books, Picture Books & Activity Books Children's Poetry & Anthologies Browse more Children’s, Teenage & Educational categories
Magazines
Stationery
Toys & Games
Merchandise
Gift cards
Special Editions
Merchandise
Events
All events
Discover our full programme of events, for unique in-person and online activities
Author Events
Meet your favourite authors and attend insightful, engaging discussions about their books
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Exciting clubs covering all the main reading genres for you to get stuck into
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Gift cards

Joao T Mexia Author

Product and Ratio of Generalized Gamma-Ratio Random Variables cover

Product and Ratio of Generalized Gamma-Ratio Random Variables

3 authors - Paperback

£48.97