Yes! We also love the Ladybird Read-It-Yourself series of books. There are four levels - Ella started reading the level 1 books at around 20-21 months and is now, at 32 months, just developing the reading stamina for the level 4 books. Other leveled readers that she LOVES are the:
Usborne First Reading books levels 2-4 (The level 1 books were too easy for her when I started buying these books.)
Oxford Reading Tree Magic Key series (The Magic Key stories start at level 5 onwards.)
I Can Read book collections (Adventures of Frog and Toad, Adventures of Harold and his Purple Crayon, Adventures of Little Bear are some of the titles in this series that we have.)
Scholastic Vocabulary Tales and Grammar Tales box sets
And she is now just getting into the MathStart series of books which introduces math concepts as well as helping her practice reading.
Hope this helps!