An easily searchable online catalogue with the ability to make reservations is the single best feature of our public library.

The local librarians add content-specific tags that are searchable by age/grade level, so that you can search an entry such as "sea stars tide pools", toggle kindergarten level, and get a list of potential titles.

ETA: keeping story time or book clubs ability-linked, not age-linked, is something I wish was more prevalent here.

What is to give light must endure burning.