Roald Dahl's books are easy to understand, very comical and super interesting!
You really can't go wrong with Harry Potter! I would recommend this series for kids above 8 or so. The links I have added to these books are the 25th Anniversary Paperback Edition, and the first photo in each recommendation is the cover photo for the...
David Walliams' books are fun and interesting!
These books are rather bite-sized and easy to read and understand! I couldn't find the books sold as a pack, but if you do manage to find it, be sure to check it out! And if you ever forget what parts from the previous books, there's always a recap a...