The book behind the ten-thousand-hours slogan, written by the researcher who spent his career correcting it.
Ericsson studied expert performers for three decades — violinists, chess players, surgeons, memory athletes — and this is his own account of what that work showed. The useful part for anyone developing people is the distinction between doing something for years and practicing it: purposeful practice has a target just beyond current ability, immediate feedback, and someone who knows what good looks like. He is also direct about what popularizers got wrong with his findings, which makes the book a corrective as well as a primer.
Worth noting that later meta-analyses put the share of performance explained by practice lower than Ericsson does, particularly in professional settings. Read it as the strongest case for practice rather than the last word on it.
Our Take
Peak explains what turns repetition into purposeful practice: a target just beyond current ability, immediate feedback and a guide who knows what good looks like. A practical handbook for designing practice that develops people — well read together with the debate that has followed it.
Ericsson, K. A., & Pool, R. (2016). Peak: Secrets from the new science of expertise. Houghton Mifflin Harcourt. Find it
