Books and Resources to Start Strong
Building knowledge before you invest your money separates successful resellers from those who burn through capital on mistakes. These books teach you how to evaluate instruments, spot value, negotiate deals, and run the financial side of your business without guesswork.
The Reverb Field Guide to Vintage Guitars by Dan Erlewine
This guide teaches you how to assess guitar condition, identify sought-after models, and understand what drives prices in the vintage market. Since guitars make up a significant portion of most instrument reselling businesses, knowing how to spot a $200 instrument from a $2,000 one is essential. Erlewine’s practical approach cuts through hype and gives you real evaluation frameworks.
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Gruhn’s Guide to Vintage Guitars by George Gruhn and Walter Carter
This is the bible for guitar serial numbers, specifications, and market values. If you’re serious about reselling instruments, you need to be able to identify what you actually have. This reference book has saved resellers from accidentally underpricing rare finds or overpaying for common models that look similar to the untrained eye.
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The Art of Negotiation by G. Richard Shell
Instrument reselling involves constant negotiation—with estate sale companies, private sellers, other dealers, and customers. Shell’s book teaches you how to build relationships, understand what the other side actually wants, and create deals where both parties feel satisfied. Better negotiation skills directly translate to higher margins and repeat business.
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Profit First by Mike Michalowicz
Many resellers fail not because they can’t find inventory, but because they don’t manage money properly. This book teaches you to set aside profit before expenses, which keeps your business sustainable. For a business with thin margins and high cash flow, understanding how to structure your finances prevents the common trap of looking profitable while actually running out of cash.
Equipment You Need
Your equipment budget should reflect your sales channel and the condition of instruments you’re buying. A reseller selling high-end vintage instruments online needs different tools than someone focusing on budget-friendly student instruments at local sales. Start with essentials and add specialized equipment as your volume and expertise grow.
Assessment and Documentation Tools
- Digital scale: Accurate weight matters for shipping costs and detecting counterfeit instruments. A 50-100 lb capacity scale costs $30-60 and pays for itself on your first 20 listings.
- Calipers or measurement gauge: Precise dimensions help identify model variations and authenticity. Essential for vintage instruments where small differences mean significant price gaps.
- Tuner and metronome: You need to verify that instruments actually work. A digital tuner detects mechanical issues and proves functionality to buyers.
- Camera or smartphone: High-quality photos are non-negotiable for online sales. You don’t need an expensive camera if your phone has a decent camera—lighting matters more than equipment.
- Flashlight or LED work light: Look inside instruments for cracks, repairs, and manufacturing details. A simple LED headlamp reveals damage that poor lighting misses.
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Cleaning and Maintenance Supplies
- Microfiber cloths: Safe for delicate finishes. Never use paper towels on instruments—they scratch and damage surfaces.
- Specialized instrument cleaning solutions: Different instruments need different approaches. Guitar polish works differently than drum head cleaner or keyboard wipes.
- Fret cleaner and lemon oil: For guitars and other wooden instruments. Makes them look significantly better without damaging value.
- Brass and metal polish: Horns, trumpet valves, and metal hardware need appropriate cleaners to avoid corrosion.
- String replacements: Budget-friendly strings for guitars, ukuleles, and similar instruments. Restringing before sale increases perceived value substantially.
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Packing and Shipping Materials
- Original instrument cases: Your best option. Buy cases separately if needed for expensive instruments.
- Heavy-duty boxes: Instrument-appropriate sizing prevents damage during shipping.
- Bubble wrap and packing paper: Essential for protecting delicate items. Cheap compared to replacing damaged instruments.
- Packing tape and labels: Heavy-duty tape ensures boxes stay sealed. Printer labels save time on bulk shipments.
- Weight and dimension scale: Accurate measurements reduce shipping cost errors and returns.
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Storage and Workspace
- Shelving units: Climate-controlled storage protects instruments from humidity and temperature swings that damage wood and electronics.
- Humidity monitor: Ideally keep storage between 40-60% humidity. $15-25 for a good meter.
- Work table: Dedicated space for assessment, cleaning, and photography. Nothing elaborate needed—a 4-foot folding table works fine.
- Proper lighting: LED shop lights reveal defects and photograph instruments accurately.
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What to Buy First vs Later
Your first purchases should enable you to find inventory and sell it safely. Specialized assessment tools and premium cleaning supplies come later, once you have consistent sales funding them.
- First (Month 1): Digital camera or use your phone, basic cleaning cloths, tuner, scale, work table, storage shelving, and shipping boxes. Total: $150-300.
- Second (Months 2-3): Specialized cleaning solutions for instrument types you actually handle, LED lighting for photography, humidity monitor, and calipers for detailed assessment.
- Third (Months 4+): Advanced tools like professional lighting setups, additional specialized cleaners, premium packing materials, and reference books as you specialize in specific instrument categories.
New vs Used Equipment
Buy scales, tuners, and measurement tools new. These need to be accurate, and used models have no warranty if they malfunction. A broken scale costs you money through shipping calculation errors far beyond its purchase price. Cases, boxes, and shelving can be purchased used through Facebook Marketplace or Craigslist—you’ll save 30-50% and function is the only requirement.
For cleaning supplies, buy new. Used brushes and cloths may harbor mold or damage to instruments. However, avoid premium brands—budget instrument cleaning solutions work fine for your purposes. Where you genuinely save money is on workspace and storage. Used shelving, tables, and storage containers serve your business perfectly as long as they’re structurally sound and clean.
Where to Buy
- Local tool and home improvement stores: Return policies are better than online, and you can inspect items before purchase. Good for scales, shelving, and lighting.
- Estate sales and auctions: Buy used storage boxes, shelving, and workspace equipment here. You’re already at these sales sourcing instruments—grab workspace supplies while you’re there.
- Facebook Marketplace and Craigslist: Free or cheap local pickup for shelving, tables, and boxes. No shipping costs on heavy items.
- Reverb.com: Sells instruments, but also carries specialized music equipment and tools. Their marketplace sometimes has used assessment tools and reference materials.
- Specialized music retailers: Guitar Center and similar stores carry cleaning supplies, strings, and specialized maintenance products that aren’t available everywhere.
- Industrial supply stores: For scales, shelving, and packing materials. Often cheaper than consumer retailers and built for heavier use.