A short personal-finance blog post on selling used books and textbooks online, comparing buyback sites such as Amazon, BookByte, mbsbooks, Valore and eCampus using a price table for three sample textbooks. The comparison data is from 2012, in US dollars, and is mostly US-focused despite the title promising Spain and 2026 prices, so the content is dated and thin; people land on it searching for buyback sites such as bookbyte.com or for ways to get cash for old books.
Spanish-speaking individuals, often students or people decluttering, looking to make a little money from used books and textbooks; the largest audience country is Argentina, with very low traffic overall.
A mention would suit a book or textbook resale marketplace, a buyback or cash-for-items service, or a personal finance or side-income app that helps people earn from unused things. It would read most naturally right after the price comparison table or in the closing section on other things to do with books, though the very low traffic (1 organic click in 28 days, no AI answer impressions) and outdated data limit its value.
Summarised from the live page by AI. Traffic figures come from the publisher's own Search Console, last 28 days.