Software for resellers and comic book stores to sell used comic books at scale

Professional comic book resellers use TWICE to run high-volume operations for comics, figures, and other collectible items — from intake and authentication to listing and sale.

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Process supply faster

Intake single issues, bound volumes, collections, or consignments with fast, structured workflows.

Sourcing

Grade items accurately

Capture publication, volume, issue date, topic, and condition consistently at item level.

Inspecting & grading

List items at scale

Turn raw intake data into accurate, searchable product pages for serious readers and collectors.

Listing

Sell everywhere

List across your own store, marketplaces, and physical locations with real-time availability and integrated payments.

Selling

From sourcing to selling in one continuous flow

Sourcing

Register resale inventory with structure

Whether you source from private collections, libraries, liquidation, consignments, or publisher surplus, TWICE keeps intake organized and fast. Each magazine or bundle gets standardized data from day one, so you can handle thousands of unique issues without losing track.

Unique IDs

Assign a serialized identity to every issue, bundle, or volume as it enters inventory.

Register new items quickly

Quickly add new entries and fill in all the necessary product data consistently. You can also bulk create items by uploading a CSV.

Intake templates

Create reusable templates to streamline item intake and registration for comic books, tailored to your workflows.

Flexible intake models

TWICE supports intake across sourcing models, from individual purchases to consignment, trade-ins, and bulk acquisition.

Inspecting & grading

Inspect and grade consistently

Define inspection criteria for comic books, document condition and required records per unit, and assign review steps across your team for consistent grading.

Dynamic attributes

Log condition details like spine creases, tears, discoloration, annotations, missing pages, or removed inserts with purpose-built fields.

Item-level media

Add photos and documents to each item to support inspection, grading, and trust.

Attribute presets

Create reusable attribute presets that standardize grading and reduce manual work.

Task management

Route inspection and grading tasks through clear, repeatable workflows across your team.

Listing

List fast

Create listings in seconds using structured data, flexible variants, and attribute-based pricing rules.

Listing templates

Convert structured product data into customer-ready listings across channels with minimal effort.

Tags & collections

Use tags and collections to organize listings, promote your offerings, and power rule-based campaigns and more.

Variants

Use variants to group similar items under one listing and let shoppers choose the option that fits them best.

Conditional pricing

Set prices dynamically using rules tied to condition, grade, or other product attributes.

Selling

Sell across every channel

Back issues, archives, and collectible magazines are often one-of-a-kind in your stock. TWICE keeps your inventory synced across in-store sales, your own ecommerce, and marketplaces, so each unique copy is sold once – at the best margin possible.

Cross-listing

Publish listings to multiple channels in a few clicks without copying data or re-entering stock.

Built-in online store

Sell directly through a ready-made storefront optimized for recommerce and long-tail catalog search.

Integrated payments

Offer secure checkout with lower fees than typical marketplace commissions.

Unified order management

See all orders and fulfillment tasks from every channel in a single, organized dashboard.

Selling old comic books is good business. Doing it with TWICE is even better.

From solo sellers handling rare back issues to established comic book stores, TWICE gives comic books resellers the structure they need to manage issue-level inventory and multi-channel sales.

Independent resellers

Replace spreadsheets and scattered tools with one easy-to-use system that helps you organize comic book inventory and cross-list items quickly across the comics resale channels that matter.

Local comic shops

Streamline intake, pricing, and listing work while expanding from a physical store to online channels, and stand out by offering a more transparent and reliable buying experience.

Auction houses & specialty resellers

Centralize cataloging, documentation, and sales data for unique lots, and reuse structured information across auctions, fixed-price listings, and private sales to increase sell-through.

Reselling comic books, simplified

Remove the most common resale bottlenecks and run your operations smoothly, whether you are just getting started or scaling a complex resale business.

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Frequently asked questions

How does TWICE handle unique magazine issues and long-tail catalogs?

Used magazine inventory is highly fragmented – every issue can be different by date, topic, and condition. TWICE uses single-item tracking, so each issue or set carries its own data: publication, volume and issue number, year, topic tags, condition, source, and price history. You always know what you have, where it is, and what’s ready to list without relying on spreadsheets or manual notes.

Can TWICE support consignments, buybacks, and direct purchases of magazine collections?

Yes. TWICE is built to support multiple intake models. Track consignor agreements, splits, and payouts for individuals bringing in collections, or run buyback and direct-purchase programs where you acquire stock outright. All intake types live in one system, so you can grow supply without adding administrative chaos.

Does TWICE connect my in-store magazine inventory with my online sales?

Yes. TWICE centralizes inventory across physical locations, warehouse storage, pop-ups, and your online store or marketplaces. Every sale updates stock in real time, protecting you from double-selling one-off back issues. POS and online checkout are connected through a single backend focused on recommerce workflows.

How does TWICE help with grading and pricing used magazines?

TWICE lets you define standardized grading criteria for magazines – such as spine wear, cover quality, missing inserts, annotations, and overall condition – so your team evaluates issues consistently. You can set pricing rules by publication, year, condition, and demand while still allowing experts to override prices for rare or high-value issues.

Can I keep my existing website and use TWICE just for the resale side?

Absolutely. Many businesses plug TWICE in behind their existing website to power the resale and back-issue operation. You can connect via integrations, embed store components, or link directly to TWICE-powered product pages. TWICE manages inventory, orders, and lifecycle tracking, while your current site stays the main brand touchpoint.