Although there is a trend toward abandoning the practice, architects who still offer a free initial consultation typically read blueprints as part of the process. The purpose of consultation is to understand a potential project, and a blueprint can help the architect understand the client's wishes.
Many people expect an architect's services to be expensive, but in 2015 most homeowners who hired an architect reported the cost as ranging from $2,000 to $8,000. Popular Mechanics advises that hiring an architect for major projects is well worth the cost, both for an architect's ability to conceptualize all the steps involved and for the ability to make the process understandable for the client.
If someone is simply curious about a blueprint, it is possible to learn to read blueprints on one's own. There are tutorials in reading blueprints available online from wikiHow and several other sources.