This activity book has a maze on almost every page, each with a twist.
ArchivesLanguages
Automata, Formal Languages, and Turning Machines, Emre Sermutlu, PB, 2020s
You will find that the illustrated character list prevents confusion.
Orthodox- St Ignatius Pocket Prayer Book Modern English Edition Hardcover
A nice touch is the sticker sheet included in this activity book for rewards.
“Polyglot: How I Learn Languages” by Kato Lomb (TESL-EJ, trade paperback)
What stands out about this anthology is the illustrated introduction.