Buy vs Rent: We recommend you Rent
This compares the total cost of owning the book (cheapest buy price minus the best sell-back offer today) with the cheapest rental.
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Disclaimer: These calculations are based on the current advertised price. Your results will vary depending on several factors, including the condition of the book and the advertised price at the time of sale.
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| Knetbooks Short Term Rental (60 days, due 12/19/2026) |
Short Term Rental (60 days, due 12/19/2026) |
$25.39 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| BiggerBooks Short Term Rental (60 days, due 12/19/2026) |
Short Term Rental (60 days, due 12/19/2026) |
$26.42 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| Knetbooks Quarter Rental (59 days, due 12/18/2026) |
Quarter Rental (59 days, due 12/18/2026) |
$26.81 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| Knetbooks Used |
Used | $27.36 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| BiggerBooks Quarter Rental (59 days, due 12/18/2026) |
Quarter Rental (59 days, due 12/18/2026) |
$27.89 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| Knetbooks Semester Rental (76 days, due 01/04/2027) |
Semester Rental (76 days, due 01/04/2027) |
$28.22 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| BiggerBooks Semester Rental (76 days, due 01/04/2027) |
Semester Rental (76 days, due 01/04/2027) |
$29.36 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| eCampus Short Term Rental (60 days, due 12/19/2026) |
Short Term Rental (60 days, due 12/19/2026) |
$25.65 as of Oct 20, 2026, 4:21 AM ET |
$3.97 | |||
| eCampus Quarter Rental (59 days, due 12/18/2026) |
Quarter Rental (59 days, due 12/18/2026) |
$27.08 as of Oct 20, 2026, 4:21 AM ET |
$3.97 | |||
| eCampus Semester Rental (76 days, due 01/04/2027) |
Semester Rental (76 days, due 01/04/2027) |
$28.50 as of Oct 20, 2026, 4:21 AM ET |
$3.97 | |||
| BiggerBooks New |
New | $37.58 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| Knetbooks New |
New | $37.77 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| Knetbooks Used |
Used | $27.36 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| eCampus (Marketplace) Used (Marketplace) |
Used (Marketplace) |
$135.01 as of Oct 20, 2026, 4:21 AM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| BiggerBooks New |
New | $37.58 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| Knetbooks New |
New | $37.77 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| eCampus New |
New | $37.96 as of Oct 20, 2026, 4:21 AM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| Knetbooks Semester Rental (76 days, due 01/04/2027) |
Semester Rental (76 days, due 01/04/2027) |
$28.22 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| BiggerBooks Semester Rental (76 days, due 01/04/2027) |
Semester Rental (76 days, due 01/04/2027) |
$29.36 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| eCampus Semester Rental (76 days, due 01/04/2027) |
Semester Rental (76 days, due 01/04/2027) |
$28.50 as of Oct 20, 2026, 4:21 AM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| Knetbooks Quarter Rental (59 days, due 12/18/2026) |
Quarter Rental (59 days, due 12/18/2026) |
$26.81 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| BiggerBooks Quarter Rental (59 days, due 12/18/2026) |
Quarter Rental (59 days, due 12/18/2026) |
$27.89 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| eCampus Quarter Rental (59 days, due 12/18/2026) |
Quarter Rental (59 days, due 12/18/2026) |
$27.08 as of Oct 20, 2026, 4:21 AM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| Knetbooks Short Term Rental (60 days, due 12/19/2026) |
Short Term Rental (60 days, due 12/19/2026) |
$25.39 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| BiggerBooks Short Term Rental (60 days, due 12/19/2026) |
Short Term Rental (60 days, due 12/19/2026) |
$26.42 as of Oct 20, 2026, 4:21 AM ET |
at checkout | |||
| eCampus Short Term Rental (60 days, due 12/19/2026) |
Short Term Rental (60 days, due 12/19/2026) |
$25.65 as of Oct 20, 2026, 4:21 AM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| VitalSource eBook |
eBook | Check price at VitalSource |
at checkout | |||
| RedShelf eTextbook |
eTextbook | Check price at RedShelf |
at checkout | |||
| Amazon New & used |
New & used | Check price at Amazon |
at checkout | |||
| AbeBooks Used & new (marketplace) |
Used & new (marketplace) | Check price at AbeBooks |
at checkout | |||
| SellBackBooks Sell back |
Sell back | Check price at SellBackBooks |
at checkout | |||
Prices checked Oct 20, 2026, 4:21 AM ET. Totals include shipping where the store lists it. As an Amazon Associate, CheapestTextbooks.com earns from qualifying purchases.
Endorsed by Cambridge International Examinations. Develop your students computational thinking and programming skills with complete coverage of the latest syllabus from experienced examiners and teachers. - Follows the order of the syllabus exactly, ensuring complete coverage - Introduces students to self-learning exercises, helping them learn how to use their knowledge in new scenarios Accompanying animation files of the key concepts are available to download for free online. See the Quick Links to the left to access. This book covers the IGCSE (0478), O Level (2210) and US IGCSE entry (0473) syllabuses, which are for first examination 2015. It may also be a useful reference for students taking the new Computer Science AS level course (9608).
When you open this page we ask eCampus, Amazon, Knetbooks, BiggerBooks, VitalSource and RedShelf for their current prices on ISBN 9781471809309 and sort every offer by its total with shipping. Rental rows show the term (semester, quarter or short term) and that term goes with you to the store's cart, and eBook rows link straight to the 180-day or no-expiry option you picked. Prices are rechecked at least every 30 minutes, so confirm the total at checkout.
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