Atomic Habits begins with a highly effective way of building habits - aggregation of marginal gains - start small habits (that can be accomplished within 2 minutes), but do them for repeatedly over the course of time.

Atomic Habits provides four simple steps that turn action into habits, and conversely how to stop those actions for bad habits you wish to get rid of. These steps correlate with the habit feedback loop of cue, craving, response, and reward. These steps are:

• Make it obvious (or invisible for those habits you wish to break)
• Make it attractive (unattractive)
• Make it easy (difficult)
• Make it satisfying (unsatisfying)

Author James Clear proposes that you ponder the following:

• Every action you take is a vote for the type of person you wish to become.
• Does this behavior help me become the type of person I wish to be?
• Does this habit cast a vote for or against my desired identity?

A must have book for those wishing to break bad habits and form new ones.