How can I repair splits in paperback binding like this? Is there a technique beyond just sticking some PVA glue in there? (I tried this and it didn't work too well!)

How can I repair splits in paperback binding like this? Is there a

Do-It-Yourself Book Press – Jim Munroe

店舗同時販売中】クラシックスタイル ガラスキャビネット メーカー不明【店頭ご来店購入限定】 - 収納家具

Just Open My New Book and it Seem the Glue is Already Coming Away

The Fix: Repairing an Adhesive Bound Paperback – Smithsonian

Is there any way I can fix this crease? : r/bookbinding

3 Ways to Repair a Book's Binding - wikiHow

How to Repair Books (repair forum at permies)

Book Repair on a Budget: Consolidating a Textblock

3 Ways to Repair a Book's Binding - wikiHow