Making reading a habit, not a chore
The best reading chart measures time or days, not pages. Twenty minutes a day, most days, is what builds a reader; the chart just makes the streak visible.
What to track
For children learning to read (five to seven): "Read to a grown-up" and "Read 10 minutes" as separate rows, because both matter. For confident readers (eight and up): "Read 20 minutes", "Finished a chapter", "Read before bed". The goals on this chart are a starting point; keep three or four.
Any book counts
Comics, joke books, the back of the cereal packet, the same book for the fourth time. A reading chart that only counts "proper" books teaches that reading is work. Let them tick the box for whatever they chose to read.
Rewards that involve books
The natural reward is more reading: a trip to the library, choosing a new book, a later bedtime if the extra time is spent reading, a reading picnic. These keep the reward and the habit pointing the same way. Treats unrelated to reading work too; they just miss an opportunity.
For teachers
Add each pupil's name and you get a page per child with the same goals, ready for a classroom reading wall. The Classroom theme is chosen here; Minimal is cleaner if you're printing thirty copies.
Summer reading
Switch "Chart runs" to Monthly for a holiday reading chart with a box for every day. It prints in landscape and fits a whole month of ticks on one page.