Is Getting Things Done better than Building a Second Brain?

Getting Things Done ranks higher in our list of productivity and note-taking books (#3 against #5, score 88.5 against 86.5), but the gap is small and the better choice depends on what you need. Building a Second Brain is best for: digital notes and reuse for knowledge work. Getting Things Done is best for: capturing and organizing tasks.

Which is cheaper, Building a Second Brain or Getting Things Done?

Building a Second Brain: Print, ebook and audio editions; the site also sells courses. Getting Things Done: Print editions from Penguin; price varies by seller.

Comparison · Productivity and note-taking books

Building a Second Brain vs Getting Things Done: which is better in 2026?

Building a Second Brain86.5#5 in best productivity and note-taking books

Getting Things Done88.5#3 in best productivity and note-taking books

Getting Things Done ranks higher in our list of productivity and note-taking books (#3 against #5, score 88.5 against 86.5), but the gap is small and the better choice depends on what you need.

How we rank Share

86.5
Editorial score
88.5
2
Formats
1
No
Free to use
No

Which should you choose?

Choose Building a Second Brain if you want

Digital notes and reuse for knowledge work.

A digital note system built around four steps, with examples in common apps. It is tied to digital tools and sells courses alongside the book, so it is more tool-driven than Ahrens.

Choose Getting Things Done if you want

Capturing and organizing tasks.

A complete capture and review workflow for tasks and commitments, with concrete steps for each part. It is about task systems rather than attention or notes, so it complements Deep Work and Smart Notes here.

Side by side

	Building a Second Brain	Getting Things Done
Score	86.5	88.5
Rank in list	#5 of 10	#3 of 10
Price	PaidPrint, ebook and audio editions; the site also sells courses	PaidPrint editions from Penguin; price varies by seller
Free to use	No	No
Formats	Print, Audiobook	Print
Author	Tiago Forte	David Allen
Level	Beginner	Beginner to intermediate
Free to read online	No	No
Main focus	Capturing and reusing digital notes	Capturing and organizing commitments into next actions
Best for	Digital notes and reuse for knowledge work	Capturing and organizing tasks
Strengths	Clear four-step framework Works with common digital note tools Available in print and audio	Concrete capture and review workflow Focus on next actions for tasks Author offers courses and coaching
Limits	Tool-heavy, with many app examples The author's site sells courses alongside the book	Says little about goals or deep focus Setup takes effort before the system helps
Links	Visit site	Visit site

Questions about Building a Second Brain vs Getting Things Done

Is Getting Things Done better than Building a Second Brain?: Getting Things Done ranks higher in our list of productivity and note-taking books (#3 against #5, score 88.5 against 86.5), but the gap is small and the better choice depends on what you need. Building a Second Brain is best for: digital notes and reuse for knowledge work. Getting Things Done is best for: capturing and organizing tasks.
Which is cheaper, Building a Second Brain or Getting Things Done?: Building a Second Brain: Print, ebook and audio editions; the site also sells courses. Getting Things Done: Print editions from Penguin; price varies by seller.