2 stores
Pragmatic Bookshelf
Programming Crystal: Create High-Performance, Safe, Concurrent Apps
Compared at 2 stores·New
·Updated 2 days ago
Lowest $20.02Highest $22.99
Compare buying options
Two live offers. The cheapest is new.Sold byDetailsSpecial savingsItem price
Product Description
Crystal is for Ruby programmers who want more performance, or for developers who enjoy working in a high-level scripting environment. Crystal combines native execution speed and concurrency with Ruby-like syntax, so you will feel right at home. Th
Set Price Drop
Get an alert as soon as it’s on sale.
Alert set
Your price
Lowest now$20.02
We’ll let you know when any store drops to your price or lower.
Video reviews
Reviews of this product on YouTube.Just For You
Stores we recommend, with today’s cash back rates.
Boosted Cash BackBoosted
Activate & Shop
Boosted Cash BackBoosted
Activate & Shop
Boosted Cash BackBoosted
Activate & Shop
Activate & Shop
Boosted Cash BackBoosted
Activate & Shop
Activate & Shop
Activate & Shop
Boosted Cash BackBoosted
Activate & Shop
Activate & Shop
Activate & Shop
Boosted Cash BackBoosted
Activate & Shop
Boosted Cash BackBoosted
Activate & Shop
Activate & ShopTemu
Up to 40% Cash Back
Up to 30% Off Select Items
Activate & ShopAlo Yoga
4% Cash Back
Up to 40% Off Select Items
Activate & ShopThe Home Depot
Up to 8% Cash Back
Up to 40% Off Select Items
Activate & ShopeBay
Up to 1.5% Cash Back
10% Off Select Items
Activate & ShopEtsy
3.7% Cash Back
Up to 75% Off Select Items
Activate & Shop2ndSwing
2.5% Cash Back
Activate & ShopMax & LIly
1% Cash Back
Activate & ShopZappos
15% Cash Back
50% Off Select Items
Activate & ShopLowe's
1.6% Cash Back
Activate & ShopHot Topic
1% Cash Back
20% Off
Activate & ShopChewy
10% Cash Back
50% Off First Autoship
Activate & ShopNew Balance
5% Cash Back
25% Off Select Items