Short answer: Light highlighting and neat notes are usually fine in a concept book. Heavy writing, missing pages and damp marks are the signs to avoid.
Three kinds of marks to separate
Marks in a used book fall into three groups: highlighting and notes, stains or water damage, and physical damage such as tears. Each affects usefulness differently, and it helps to judge them separately.
Highlighting and notes
A few highlighted lines or neat notes in the margin rarely cause a problem for a concept book, and sometimes help. The concern is practice sections with answers already written in, because you lose the chance to attempt them fresh.
Stains and water marks
Small cover stains are cosmetic. Water marks inside the pages are more serious because they can cause wavy paper, smell and mould over time. If photos show rippled pages, ask the seller for a closer image.
Physical damage
- Loose or missing pages
- Broken or very weak binding
- Torn corners that cut into the text
- Cut or removed sections
Ask before you order
Ask for a photo of the sample inside pages, the edition page and the last page. Our guide on checking book condition before buying online explains the other checks.
If the book is not as described
If the book does not match the listing, contact info@bookaao.com or call 6239336394 with photos.
Match the book to how you will use it
A reference book you will only consult can tolerate more marks than a workbook you plan to practise from. Decide the use first, then decide how much wear you will accept. For a book you want to resell later, remember that your own marks will also affect its condition when you sell it.
Look at smell and feel when it arrives
When the parcel arrives, check the pages for damp smell, stickiness and warping. Compare with the photos and listing. If anything differs, take photos straight away so you have a clear record.
Final thoughts
There is no single rule that fits every book, so use judgement based on how you will study. If you are unsure, ask the seller for extra photos of the worst pages and the cover edges. Clear photos help both sides agree on what the condition is before the order is placed.
When you sell your own books later, apply the same standard in reverse: describe the marks honestly and show them in the photos. Honest descriptions lead to fewer disputes and happier buyers.
Where to look
Browse second hand books and compare photos before choosing.
Frequently asked questions
Is a highlighted book acceptable?
Light highlighting is usually fine for concept books, but avoid practice books with answers filled in.
Are water marks a problem?
Yes, since damp can damage pages over time. Ask for close photos before ordering.
Who do I contact about a wrong description?
Contact info@bookaao.com or call 6239336394 with photos of the book.